A. A. Perfilyev, “Degree-one maps of Seifert manifolds into the Poincaré homology sphere”, J Math Sci, 144, № 5, 2007, 4484
ÐORÐE B. BARALIĆ, “ON INTEGERS OCCURRING AS THE MAPPING DEGREE BETWEEN QUASITORIC 4-MANIFOLDS”, J. Aust. Math. Soc., 103, № 3, 2017, 289
A. A. Perfilyev, “Solution of the problem of describing minimal Seifert manifolds”, Sib Math J, 48, № 1, 2007, 126
Anne Bauval, Claude Hayat, “Lʼanneau de cohomologie des variétés de Seifert”, Comptes Rendus. Mathématique, 351, № 3-4, 2013, 81