@article{BASM_2006_1_a7,
     author = {Andrei Perjan},
     title = {Limits of solutions to the semilinear wave equation with small parameter},
     journal = {Buletinul Academiei de \c{S}tiin\c{t}e a Republicii Moldova. Matematica},
     pages = {65--84},
     publisher = {mathdoc},
     number = {1},
     year = {2006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/BASM_2006_1_a7/}
}