To cite sylly.en in publications use:
Michalke M (2018). sylly.en: Language Support for 'sylly' Package: English. (Version 0.1-3), http://reaktanz.de/?c=hacking&s=koRpus.
Corresponding BibTeX entry:
@Manual{, title = {sylly.en: Language Support for 'sylly' Package: English}, author = {Meik Michalke}, year = {2018}, note = {(Version 0.1-3)}, url = {http://reaktanz.de/?c=hacking&s=koRpus}, }