@article{VTPMK_2020_3_a3,
     author = {V. S. Sekorin},
     title = {On equivalence of two {PFP-operator} semantics},
     journal = {Vestnik Tverskogo gosudarstvennogo universiteta. Seri\^a Prikladna\^a matematika},
     pages = {41--49},
     publisher = {mathdoc},
     number = {3},
     year = {2020},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VTPMK_2020_3_a3/}
}