@article{JMAG_1998_5_3_a10, author = {M. A. Shakirov}, title = {The principal vector of line local distortion under the conformal mapping and its application}, journal = {\v{Z}urnal matemati\v{c}eskoj fiziki, analiza, geometrii}, pages = {304--314}, year = {1998}, volume = {5}, number = {3}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/JMAG_1998_5_3_a10/} }