@article{ASNSP_1979_4_6_1_19_0, author = {Klingenberg, Wilhelm}, title = {Closed geodesics on surfaces of genus 0}, journal = {Annali della Scuola Normale Superiore di Pisa - Classe di Scienze}, pages = {19--38}, publisher = {Scuola normale superiore}, volume = {Ser. 4, 6}, number = {1}, year = {1979}, mrnumber = {529474}, zbl = {0426.58008}, language = {en}, url = {http://archive.numdam.org/item/ASNSP_1979_4_6_1_19_0/} }
TY - JOUR AU - Klingenberg, Wilhelm TI - Closed geodesics on surfaces of genus 0 JO - Annali della Scuola Normale Superiore di Pisa - Classe di Scienze PY - 1979 SP - 19 EP - 38 VL - 6 IS - 1 PB - Scuola normale superiore UR - http://archive.numdam.org/item/ASNSP_1979_4_6_1_19_0/ LA - en ID - ASNSP_1979_4_6_1_19_0 ER -
Klingenberg, Wilhelm. Closed geodesics on surfaces of genus 0. Annali della Scuola Normale Superiore di Pisa - Classe di Scienze, Serie 4, Volume 6 (1979) no. 1, pp. 19-38. http://archive.numdam.org/item/ASNSP_1979_4_6_1_19_0/
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