@article{ARM_2001__37_1_a1,
     author = {Papageorgiou, Nikolaos S. and Yannakakis, Nikolaos},
     title = {Existence of extremal periodic solutions for nonlinear evolution inclusions},
     journal = {Archivum mathematicum},
     pages = {9--23},
     publisher = {mathdoc},
     volume = {37},
     number = {1},
     year = {2001},
     mrnumber = {1822759},
     zbl = {1090.34577},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_2001__37_1_a1/}
}