@article{MV_1975_27_1_a12,
     author = {K. Orlov},
     title = {New method of solving the system of differential partial equations of any number of equations, of any number of functions and of any order},
     journal = {Matemati\v{c}ki vesnik},
     pages = {103 },
     publisher = {mathdoc},
     volume = {27},
     number = {1},
     year = {1975},
     url = {http://geodesic.mathdoc.fr/item/MV_1975_27_1_a12/}
}