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@article{RLIN_1993_9_4_4_a4, author = {Girardi, Mario and Matzeu, Michele}, title = {Periodic {Solutions} of {Second} {Order} {Nonautonomous} {Systems} with the {Potentials} {Changing} {Sign}}, journal = {Atti della Accademia nazionale dei Lincei. Rendiconti Lincei. Matematica e applicazioni}, pages = {273--277}, publisher = {mathdoc}, volume = {Ser. 9, 4}, number = {4}, year = {1993}, zbl = {0799.58064}, mrnumber = {1383913}, language = {en}, url = {http://geodesic.mathdoc.fr/item/RLIN_1993_9_4_4_a4/} }
TY - JOUR AU - Girardi, Mario AU - Matzeu, Michele TI - Periodic Solutions of Second Order Nonautonomous Systems with the Potentials Changing Sign JO - Atti della Accademia nazionale dei Lincei. Rendiconti Lincei. Matematica e applicazioni PY - 1993 SP - 273 EP - 277 VL - 4 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/RLIN_1993_9_4_4_a4/ LA - en ID - RLIN_1993_9_4_4_a4 ER -
%0 Journal Article %A Girardi, Mario %A Matzeu, Michele %T Periodic Solutions of Second Order Nonautonomous Systems with the Potentials Changing Sign %J Atti della Accademia nazionale dei Lincei. Rendiconti Lincei. Matematica e applicazioni %D 1993 %P 273-277 %V 4 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/RLIN_1993_9_4_4_a4/ %G en %F RLIN_1993_9_4_4_a4
Girardi, Mario; Matzeu, Michele. Periodic Solutions of Second Order Nonautonomous Systems with the Potentials Changing Sign. Atti della Accademia nazionale dei Lincei. Rendiconti Lincei. Matematica e applicazioni, Série 9, Tome 4 (1993) no. 4, pp. 273-277. http://geodesic.mathdoc.fr/item/RLIN_1993_9_4_4_a4/
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