Free reference software for linux

Objective Modula-2 programming language is a hybrid between Smalltalk and Modula-2 based on the object model and runtime of Objective-C.
The design is an example how native Cocoa/GNUstep support can be added to static imperative programming languages without implementing a bridge.
Objective Modula-2s scope encompasses the design of the Objective Modula-2 programming language and the implementation of a compiler to implement it. The initial compiler will generate Objective-C source code.
Enhancements:
- This code is used to verify ideas and concepts which come up in the course of defining the language.
- It is in an early stage, incomplete and subject to frequent changes.

libmng is the reference library for MNG, the animation extension to the popular PNG format.
The project provides powerful animation features combined with PNGs robustness and patent freedom.
Enhancements:
- This release adds provisional support for mpNG and ANG animations.
- There are minor bugfixes.

caudex provides a hierarchical, distributed BibTeX compatible reference management system.
Caudex is a distributed document/reference management system. Its features include support for BibTeX reference types, reference organization in hierarchical categories, BibTeX export, multiple attachments (eg PDF files) for each reference and a servlet-based Web interface with full-text search on the PDF attachments.
It is optimized for offline work, and local reference collections can be synced with servers at any time. Multiple local storages are supported and can optionally be synced against different servers.
Main features:
- Support BibTeX reference types
- BibTeX export
- Each reference can have multiple attachments, like PDF attachments
- Servlet-based web-interface with full-text search on the PDF attachments
- Optimized for offline work, local reference collections can be synced with server at any time
- Hierarchical categories
- Multiple local storages, optionally synced against multiple servers
- 100% pure Java

QiPan project consists of the reference implementation of the CXBoard communication protocol.
QiPan is the reference implementation of a cxboard compliant interface program.
CXBoard is a communication protocol, modeled after XBoard and UCI, used for communication between Chinese Chess engines and interfaces.
Enhancements:
- This release contains new pieces and additional features that make it nicer to use and able to connect to 3rd party engines.

Biblio::Citation::Parser provides a citation parsing framework.

Biblio::Citation::Parser provides generic methods for reference parsers. This class should not be used directly, but rather be overridden by specific parsers.

Parsers that extend the Parser class must provide at least the two methods defined here to ensure compatibility.

METHODS

$cite_parser = Biblio::Citation::Parser->new()
The new() method creates a new parser instance.
$metadata = $parser->parse($reference)
The parse() method takes a reference and returns the extracted metadata.

Diqt is a Web-based multilingual dictionary reference tool. That is, dictionaries of many languages can be searched using a Web browser.
Any language is available if you have its dictionary data. For example, you can search English-Japanese, English-German, Japanese-English, and English-French dictionaries at the same time.
Enhancements:
- Approximate matching with the "agrep" command was added.

KBib is a BibTex management program for KDE (Similar to KBibTex).
Features include import from RIS/ISI/Endnote files, export to Endnote/RIS files, automatically generate citation keys, check and correct duplicated citation keys, check and remove duplicated references, cite references into Lyx/Kile.
Main features:
- Add/edit/remove references
- Support copy/paste/drag-drop of references (BibTex entries can be copied/pasted or dragged/dropped from another Kbib window or a text editor into KBib and vice versus)
- Create new reference from plain text
- Find/remove duplicated references
- Generate citation key automatically
- Check/correct duplicated citation keys
- Lock/unlock citation keys (to prevent unwanted change of citation keys)
- Sort references
- Search references(fairly simple)
- Cite selected references into Lyx/Kile (using Lyx pipe)
- Support string macros
- Import references from Bibtex/RIS/ISI/Endnote/COPAC/MODS XML/PubMed XML/Endnote exported Bibtex (without citation key) files
- Export to RIS/Endnote/MODS XML/HTML files
- Search references from Z39.50 servers, SRU servers and Pubmed server.
- Download references from remote reference database (opened with Konqueror, Firefox), such as IEEEXplore, ScienceDirect (RIS format), Web of Science (ISI format) into KBib (seescreenshot)
- Save selected references into a new file
- Maintain a list of existing authors/journals/keywords in the current document
- Support user defined reference types
- Add/Delete/Edit reference types
- Allow different view modes (view all/by reference type/selected references/unselected references)
- Group references by various properties. References can be grouped by Reference type/Author/Editor/Journal/Keywords. Group view can be disabled.
- Allow flexible displayed fields
- Generate bibliography from selected references
Enhancements:
- Configuration dialog: add options to change the order of datasource
- Remote search dialog: double click to import an entry, press enter to start searching
- Reference editing dialog: ask to save data if close dialog with modified data
- New reference from text dialog: add option to add selected text to multiple value fields (e.g. authors, keywords)