1. 1999. The Java Modeling Language (JML). "https://www.cs.ucf.edu/~leavens/JML/examples.shtml" 1999. The Java Modeling Language (JML). "https://www.cs.ucf.edu/~leavens/JML/examples.shtml"
2. 2004. Beautiful Soup. https://www.crummy.com/software/BeautifulSoup/bs4/doc/ 2004. Beautiful Soup. https://www.crummy.com/software/BeautifulSoup/bs4/doc/
3. 2013. American Fuzzy Lop. http://lcamtuf.coredump.cx/afl/ 2013. American Fuzzy Lop. http://lcamtuf.coredump.cx/afl/
4. 2014. Universal Dependencies. https://universaldependencies.org/ 2014. Universal Dependencies. https://universaldependencies.org/
5. 2015. libFuzzer – a library for coverage-guided fuzz testing.. http://llvm.org/docs/LibFuzzer.html 2015. libFuzzer – a library for coverage-guided fuzz testing.. http://llvm.org/docs/LibFuzzer.html