@incollection{JEDP_1985___1_A9_0, author = {Guillop\'e, Laurent}, title = {Sur le spectre des longueurs des surfaces de {Riemann}}, booktitle = {}, series = {Journ\'ees \'equations aux d\'eriv\'ees partielles}, eid = {9}, pages = {1--9}, publisher = {Ecole polytechnique}, number = {1}, year = {1985}, zbl = {0585.58049}, language = {fr}, url = {http://www.numdam.org/item/JEDP_1985___1_A9_0/} }