@article{10_21136_MB_2019_0014_19, author = {Mawhin, Jean and Szyma\'nska-D\k{e}bowska, Katarzyna}, title = {Bound sets and two-point boundary value problems for second order differential systems}, journal = {Mathematica Bohemica}, pages = {373--392}, publisher = {mathdoc}, volume = {144}, number = {4}, year = {2019}, doi = {10.21136/MB.2019.0014-19}, mrnumber = {4047343}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.21136/MB.2019.0014-19/} }