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Translated from Ukrainskii Matematicheskii Zhurnal, Vol. 30, No. 2, pp. 185–191, March–April, 1978.
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Ostroverkhii, N.A. The n-imbeddability of graphs in 2-varieties. Ukr Math J 30, 140–145 (1978). https://doi.org/10.1007/BF01085632
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DOI: https://doi.org/10.1007/BF01085632