@article{10_4064_sm_18_1_11_41,
     author = {J. Musielak and W. Orlicz},
     title = {On generalized variations {(I)}},
     journal = {Studia Mathematica},
     pages = {11--41},
     publisher = {mathdoc},
     volume = {18},
     number = {1},
     year = {1959},
     doi = {10.4064/sm-18-1-11-41},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-18-1-11-41/}
}