@article{700087,
     title = {On a nonlinear boundary value problem of higher order},
     booktitle = {Proceedings of Equadiff III},
     series = {GDML\_Books},
     publisher = {Univ. J. E. Purkyn\v e - P\v r\'\i rodov\v edeck\'a fakulta},
     address = {Brno},
     year = {1973},
     pages = {145-153},
     mrnumber = {MR0348177},
     zbl = {0328.34013},
     url = {http://dml.mathdoc.fr/item/700087}
}

Šeda, V. On a nonlinear boundary value problem of higher order, dans Proceedings of Equadiff III, GDML_Books,  (1973), pp. 145-153. http://gdmltest.u-ga.fr/item/700087/