@article{RM_1973_28_3_a5,
     author = {N. I. Akhiezer and I. I. Vorovich and N. V. Efimov and V. P. Zaharyuta and B. Ya. Levin},
     title = {Mikhail {Grigor'evich} {Khaplanov} (on his seventieth birthday)},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {141--146},
     publisher = {mathdoc},
     volume = {28},
     number = {3},
     year = {1973},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1973_28_3_a5/}
}