@article{10_21136_AM_1991_104478, author = {J\'odar, Lucas and Navarro, Enrique}, title = {Explicit solutions for boundary value problems related to the operator equations $X^{(2)}-AX=0$}, journal = {Applications of Mathematics}, pages = {409--416}, publisher = {mathdoc}, volume = {36}, number = {6}, year = {1991}, doi = {10.21136/AM.1991.104478}, mrnumber = {1134918}, zbl = {0748.34013}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.21136/AM.1991.104478/} }