@article{SM_2012_203_5_a0,
     author = {S. S. Volosivets},
     title = {The modified $\mathbf P$-integral and $\mathbf P$-derivative and their applications},
     journal = {Sbornik. Mathematics},
     pages = {613--644},
     publisher = {mathdoc},
     volume = {203},
     number = {5},
     year = {2012},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2012_203_5_a0/}
}