@article{PDM_2018_3_a8,
     author = {Yu. D. Ryazanov},
     title = {Minimization of syntax diagrams with multiport components},
     journal = {Prikladna\^a diskretna\^a matematika},
     pages = {85--97},
     publisher = {mathdoc},
     number = {3},
     year = {2018},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PDM_2018_3_a8/}
}