Towards the proof of a theorem of Grünbaum
English version (Springer): Ukrainian Mathematical Journal 23 (1971), no. 2, pp 233-234.
Citation Example: Petrenyuk A. Ya. Towards the proof of a theorem of Grünbaum // Ukr. Mat. Zh. - 1971. - 23, № 2. - pp. 268–269.
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