@article{RCM_1968__2_181556,
     author = {Guillermo Restrepo},
     title = {On the method of the steepest descent},
     journal = {Revista colombiana de matematicas},
     pages = {45--50},
     publisher = {mathdoc},
     volume = {2},
     year = {1968},
     zbl = {0197.13202},
     url = {http://geodesic.mathdoc.fr/item/RCM_1968__2_181556/}
}