@article{Maciejewski:2009,
author
=
"A.Maciejewski and M.Przybylska",
title
=
"Differential Galois obstructions for non-commutative integrability",
journal
=
"Physics Letters, Section A: General, Atomic and Solid State Physics",
volume
=
"Vol. 372",
number
=
"no 33",
pages
=
"5431--5435",
year
=
"2008",
}