@article{MZM_2019_106_6_a8,
     author = {K. V. Loginov},
     title = {On {Nonrational} {Fibers} of {del~Pezzo} {Fibrations} over {Curves}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {881--893},
     publisher = {mathdoc},
     volume = {106},
     number = {6},
     year = {2019},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2019_106_6_a8/}
}