Partially-commutative context-free processes: expressibility and tractability Czerwiński, Wojciech Fröschle, Sibylle B. Lasota, Sławomir 2010 - TUHH Open Research
Partially-commutative context-free processes Czerwiński, Wojciech Fröschle, Sibylle B. Lasota, Sławomir 2009 - TUHH Open Research