@article{BUMI_1967_3_22_2_a0,
     author = {Conti, Roberto},
     title = {Recent trends in the theory of boundary value problems for ordinary  differential equations.},
     journal = {Bollettino della Unione matematica italiana},
     pages = {135--178},
     publisher = {mathdoc},
     volume = {Ser. 3, 22},
     number = {2},
     year = {1967},
     zbl = {0154.09101},
     mrnumber = {218650},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/BUMI_1967_3_22_2_a0/}
}