@article{ZNSL_2020_497_a2,
     author = {N. A. Karol'},
     title = {Criterion for the existence of such a cycle that vertices beyond this cycle are independent},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {53--79},
     publisher = {mathdoc},
     volume = {497},
     year = {2020},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2020_497_a2/}
}