@article{SM_2005_196_11_a5,
     author = {N. V. Plotnikova},
     title = {Systems of linear differential equations with $\pi$-derivative and linear differential inclusions},
     journal = {Sbornik. Mathematics},
     pages = {1677--1691},
     year = {2005},
     volume = {196},
     number = {11},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2005_196_11_a5/}
}