@article{10_21136_CPM_1977_108529,
     author = {Lovicar, Vladim{\'\i}r},
     title = {Periodic solutions of nonlinear abstract second order equations with dissipative terms},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky},
     pages = {364--369},
     publisher = {mathdoc},
     volume = {102},
     number = {4},
     year = {1977},
     doi = {10.21136/CPM.1977.108529},
     mrnumber = {0508656},
     zbl = {0369.34017},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPM.1977.108529/}
}