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@article{PMF_1934_41_1_a11, author = {Lipi\'nski, St.}, title = {Beta {Lyrae}}, journal = {Prace Matematyczno-Fizyczne}, pages = {143--147}, publisher = {mathdoc}, volume = {41}, number = {1}, year = {1934}, language = {de}, url = {http://geodesic.mathdoc.fr/item/PMF_1934_41_1_a11/} }
Lipiński, St. Beta Lyrae. Prace Matematyczno-Fizyczne, Tome 41 (1934) no. 1, pp. 143-147. http://geodesic.mathdoc.fr/item/PMF_1934_41_1_a11/