In: Avtom. Telemekh. (USSR), Vol. 48, No. 4, pages 102-108. April 1987. In Russian.
Also in: Autom. Remote Control (USA), Vol. 48, No. 4, pages 508-513. April 1987. English translation.
Abstract: A definition of a vocabulary Petri net (VPN) is introduced. A colored Petri net is shown to be a VPN with arbitrary access to the accumulators and a FIFO net is a VPN with arbitrary access to the accumulators and having `first-in, first-out' access.