@article{MZM_1989_46_5_a1,
     author = {O. V. Borodin},
     title = {Solution of problems of {Kotzig} and {Gr\"unbaum} concerning the isolation of cycles in planar graphs},
     journal = {Matemati\v{c}eskie zametki},
     pages = {9--12},
     publisher = {mathdoc},
     volume = {46},
     number = {5},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1989_46_5_a1/}
}