西村泰一, ニシムラヒロカズ - Zentralblatt MATH, 2020 - tsukuba.repo.nii.ac.jp
Baez, John C. ; Master, Jade Open Petri nets. (English) £ ¢ ¡ Zbl 07283037 Math. Struct.
Comput. Sci. 30, No. 3, 314-341 (20 Page 1 Baez, John C.; Master, Jade Open Petri nets. (English) …