Titlebook: High-level Petri Nets; Theory and Applicati Kurt Jensen,Grzegorz Rozenberg Book 1991 Springer-Verlag Berlin Heidelberg 1991 Datentyp (EDV).

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ent on such culture remains left behind, not only by explorers sites? and colonists from Europe and Africa, but also by I once asked a well-known archaeological Native Americans who lived in the environment for colleague why it was that such evidence did not appear in his reports from such sites, an