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@article{10_4064_cm_21_2_265_272, author = {R. Krasnod\k{e}bski}, title = {Intersecting pencil of hyperbolic circles}, journal = {Colloquium Mathematicum}, pages = {265--272}, publisher = {mathdoc}, volume = {21}, number = {2}, year = {1970}, doi = {10.4064/cm-21-2-265-272}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-21-2-265-272/} }
R. Krasnodębski. Intersecting pencil of hyperbolic circles. Colloquium Mathematicum, Tome 21 (1970) no. 2, pp. 265-272. doi : 10.4064/cm-21-2-265-272. http://geodesic.mathdoc.fr/articles/10.4064/cm-21-2-265-272/
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