-  Search by [ALL] all words without fulltext : ALL 
 Enter- ALLbefore the search term if you want to search different parts simultaneously, such as title, keyword and summary. Example:- ALL albania;- ALL clinton foreign policy
 
-  Search by [TIT] title (keywords) : TIT 
 Enter TIT before the search term if you want to search the titles of books, magazines, conference proceedings or magazine articles or other material. Example:- TIT american culture
 
-  Search by [PER] person/author : PER 
 Enter PER before the last name, possibly followed by first name, initials and prefixes if you are searching for a specific author. Example:- PER ericson;- PER smith,william(to find all versions of the first name you can follow the first letter by a- ?).
 
-  Search by [TPC] all topics : TPC 
-  Search by [SUH] subject heading : SUH 
 Dutch language GOO keywords are added to the titles. Enter- SUHbefore the- GOOkeyword by which you want to search.
 
-  Search by [PES] periodical (string) : PES 
 Enter PES before the magazine title and sub-title you are looking for. Omit articles at the beginning of the title. If you scan the entire title, you will get an overview of all magazines. Example:- PES international journal of politics, culture and society
 
-  Search by [PDS] periodical (string) : PDS 
-  Search by [SER] series, periodical (keywords) : SER 
 Enter- SERbefore the search term if you want to search magazine titles. Example:- SER british medical journal
 
-  Search by [ZTW] title of periodical (keyword) : ZTW 
-  Search by [ZET] title of periodical (string) : ZET 
-  Search by [THS] thesis statement : THS 
-  Search by [ISB] ISBN (books) : ISB 
 Enter ISB before the ISBN number if you have the International Standard Book Number for a specific publication.
 
-  Search by [ISS] ISSN (periodicals) : ISS 
 Enter ISS before the ISS number if you have the International Standard Serial Number for a specific periodical
 
-  Search by [NUM] any number : NUM 
 Enter NUM before the ISBN or ISSN number for a specific publication.
 
-  Search by [COR] corporation (keywords) : COR 
 To find titles which have been published by a specific organization. Example:- COR european union;- COR ministry education
 
-  Search by [PUB] publisher, publishing place (keywords) : PUB 
-  Search by [URL] URL (string) : URL 
-  Search by [URK] URL, URN (keyword) : URK 
-  Search by [PPN] Identify number : PPN 
 Enter PPN before the Pica production number if you have the production number for a specific publication.
 
-  Search by [PRS] personal name : PRS 
 Enter PRS before the last name, possibly followed by first name, initials and prefixes for the person you are searching for. The search key PRS applies both for the person who has written a publication and for the person a publication deals with (the subject of a publication). Example:- PRS smith, william
 
-  Search by [DEW] Dewey classification : DEW 
 Enter DEW before the Dewey code if you have the Dewey code for a specific publication. Note: you must enter a backslash and a slash (\/) rather than just a (/). If you only enter a slash, /4 in the following example would stand for the number of 'variables' that the query may contain. Example:- DEW 709\/.2\/4
 
-  Search by [YOP] year of publication : YOP 
 Enter YOP before the search term to find a title which has been published in a specific year. Example:- YOP 1798
 
-  Search by [SJH] subject headings : SJH 
-  Search by [PLC] place : PLC 
 Enter PLC before the search term to find a title which has been published in a specific town. Example:- PLC amsterdam
 
-  Search by [PRI] printer (person) : PRI 
 Enter PRI before the search term if you want to search publications that deal with a specific person. Example:- PRI churchill
 
-  Search by [SGS] shelfmark with blanks : SGS 
-  Search by [TTS] title (string, short) : TTS 
 Enter TTS before the search term to find documents which have been printed in a specific place. Example:- TTS delft
 
-  Search by [TFB] title (string, from beginning) : TFB 
 If you know the short-title.
 
-  Search by [AED] date of modification : AED 
 Enter AED before the search term to find articles about a specific town or place. Example:- AED rotterdam;- AED rotterdam
 
-  Search by [SBN] Bibliographic Citation/Reference - 
Enter SBN before the search term to search citations of bibliographic reference works.  Proximity operators-  are applicable. Example:  - SBN istc il00241000-  ;  - SBN hain # 12103
 
-  Search by [PBL] publisher : PBL 
-  Search by [STS] series (string) : STS 
-  Search by [STK] series (keywords) : STK 
-  Search by [LNR] linked records : LNR  -  ??? 
 
-  Search by [DDC] Dewey Decimal Classification : DDC 
-  Search by [MAK] type of material, bibliographic level and encoding level : MAK 
 Searching this index selects records according to a 3-character code which always must be truncated. The first position codes the type of material. Available codes are
 - 
-  A Printed material. Search for - MAK A?to retrieve all printed publications in HPB
 
-  K Cartographic material 
 Search for- MAK K?to retrieve all cartographic publications in HPB
 
-  M Notated music 
 Search for- MAK M?to retrieve all music publications in HPB
 
-  E-  Microfilmed material ( Please note that microforms are not principally in the focus of HPB. They are only included on the condition that full bibliographic description of the original is provided and (preferably) that the original is not present itself. For a more comprehensive research on microform surrogates please consult EROMM- )  - 
Search for  - MAK E?-  to retrieve all microform surrogates in HPB 
 
-  O-  Digitised material ( Please note that digitisations themselves are not principally in the focus of HPB. They are only included on the condition that full bibliographic description of the original is provided and (preferably) that the original is not present itself. For a more comprehensive research on digitisations please consult EROMM- ).  Links to digital versions- , however, will be included in the HPB record of the original whenever available. To limit searches to records including links to digitised version, please use the limit option available in the simple search   -  INSERT LINK.  - 
Search for  - MAK O?-  to retrieve all digised surrogates in HPB 
 
-  Z-  Combined/mixed material   -  INSERT EXAMPLE  - 
Search for  - MAK Z?-  to retrieve all such materials in HPB 
 
-  V Objects 
 For example board games but also graphics such as etchings (portraits, …)
 Search for- MAK V?to retrieve all such materials in HPB
 
 
-  The second position describes the bibliographic level and can only be retrieved in combination with a certain type of material. Available codes are: - 
-  a Monographic 
 For example search for- MAK Aa?to retrieve all printed monographs in HPB
 
-  b Serial 
 For example search for- MAK Ab?to retrieve all printed journals and newspapers in HPB
 
-  c Multi-volume work, title 
 This type of record is only present for the subset of HPB contributing institution which work with hierachical record structures and records the title of a multi-colume work as a separate record (which the individual volume records are attached to).
 For example search for- MAK Ac?to search for all multi-volume works in HPB which are recorded in hierachical structure
 
-  f/F Multi-volume work, volume 
 Applies only to the subset of hierachically structured records in HPB, see above.
 For example search- MAK Af? OR AF?to retrieve all volume records in HPB
 
-  d Series 
 For example search- MAK Ad?to retrieve all monographic series records in HPB
 
-  j  -  PRESENT? 
 
 
-  The third position …   -  TODO 
-  Search by [TMB] series title (keyword) : TMB  -  ??? 
 
-  Search by See also : CLT  -  ???