@article{INTM_1967_4_a0,
     author = {V. A. Ditkin and A. P. Prudnikov},
     title = {Operational calculus},
     journal = {Itogi nauki i tehniki. Seri\^a, Matemati\v{c}eskij analiz},
     pages = {7--82},
     year = {1967},
     volume = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/INTM_1967_4_a0/}
}