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@article{PMF_1935_42_1_a7, author = {Rybka, E.}, title = {Provisional photovisual magnitudes of 260 stars near {North} {Pole}}, journal = {Prace Matematyczno-Fizyczne}, pages = {133--170}, publisher = {mathdoc}, volume = {42}, number = {1}, year = {1935}, language = {en}, url = {http://geodesic.mathdoc.fr/item/PMF_1935_42_1_a7/} }
Rybka, E. Provisional photovisual magnitudes of 260 stars near North Pole. Prace Matematyczno-Fizyczne, Tome 42 (1935) no. 1, pp. 133-170. http://geodesic.mathdoc.fr/item/PMF_1935_42_1_a7/