olemus
probleem, mille tekitab litsentside paljusus ja ühildamatus
vaba tarkvara ja lähtekoodtarkvara kasutamisel
=
a problem created by the multiplicity and incompatibility of licenses when using free software and open source software

ülevaateid
https://en.wikipedia.org/wiki/License_proliferation

https://openscholarship.wustl.edu/cgi/viewcontent.cgi?article=1109&context=law_journal_law_policy

https://www.ics.uci.edu/~wscacchi/Papers/New/Jensen-Scacchi-OSS11.pdf