@article{DAN_1969_187_3_a16,
     author = {F. V. Bunkin and I. I. Tugov},
     title = {The possibility of electron-positron pair production in vacuum when laser radiation is focussed},
     journal = {Doklady Akademii Nauk},
     pages = {541--544},
     publisher = {mathdoc},
     volume = {187},
     number = {3},
     year = {1969},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1969_187_3_a16/}
}