@article{PFMT_2019_1_a6,
     author = {M. A. Hundzina},
     title = {Determination of the initial direction of cracks growth at the moment of movement},
     journal = {Problemy fiziki, matematiki i tehniki},
     pages = {40--44},
     publisher = {mathdoc},
     number = {1},
     year = {2019},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PFMT_2019_1_a6/}
}