@article{10_21136_AM_1971_103325,
     author = {Hlav\'a\v{c}ek, Ivan},
     title = {Variational formulation of the {Cauchy} problem for equations with operator coefficients},
     journal = {Applications of Mathematics},
     pages = {46--63},
     publisher = {mathdoc},
     volume = {16},
     number = {1},
     year = {1971},
     doi = {10.21136/AM.1971.103325},
     mrnumber = {0283652},
     zbl = {0219.34046},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/AM.1971.103325/}
}