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Homotopy classes of strong surjections onto the real projective plane. (arXiv:2001.08243v1 [math.AT]) http://arxiv.org/abs/2001.08243
Homotopy classes of strong surjections onto the real projective plane. (arXiv:2001.08243v1 [math.AT]) http://arxiv.org/abs/2001.08243