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@article{PIM_1984_N_S_36_50_a7, author = {M. Elia and M. T. Galizia Angeli}, title = {The {Length} of a {Lemniscate}}, journal = {Publications de l'Institut Math\'ematique}, pages = {51 }, publisher = {mathdoc}, volume = {_N_S_36}, number = {50}, year = {1984}, language = {en}, url = {http://geodesic.mathdoc.fr/item/PIM_1984_N_S_36_50_a7/} }
M. Elia; M. T. Galizia Angeli. The Length of a Lemniscate. Publications de l'Institut Mathématique, _N_S_36 (1984) no. 50, p. 51 . http://geodesic.mathdoc.fr/item/PIM_1984_N_S_36_50_a7/