@article{ZR_1984_4_12_a6,
     author = {Vladan D. {\DJ}or{\dj}evi\'c},
     title = {Some exact {Solutions} of the {Korteweg-de} {Vries} {Equation} with {Variable} {Coefficients}},
     journal = {Zbornik radova},
     pages = {61 },
     year = {1984},
     volume = {4},
     number = {12},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ZR_1984_4_12_a6/}
}