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@article{IVM_1976_1_a5, author = {A. D. Ivanov}, title = {Four-dimensional {Bol} webs of parabolic type}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {42--47}, publisher = {mathdoc}, number = {1}, year = {1976}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1976_1_a5/} }
A. D. Ivanov. Four-dimensional Bol webs of parabolic type. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 1 (1976), pp. 42-47. http://geodesic.mathdoc.fr/item/IVM_1976_1_a5/