@article{FPM_2010_16_5_a1,
     author = {D. Bertrand},
     title = {Multiplicity and vanishing lemmas for differential and $q$-difference equations in the {Siegel{\textendash}Shidlovsky} theory},
     journal = {Fundamentalʹna\^a i prikladna\^a matematika},
     pages = {19--30},
     year = {2010},
     volume = {16},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FPM_2010_16_5_a1/}
}