@article{MZM_2001_69_4_a3,
     author = {M. M. Grinenko},
     title = {On {Fibrations} into del {Pezzo} {Surfaces}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {550--565},
     publisher = {mathdoc},
     volume = {69},
     number = {4},
     year = {2001},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2001_69_4_a3/}
}