@misc{misc1ecb68aa,
title   = {Differential equations: proceedings of the 1st Latin American School of Differential Equations, held at Sao Paulo, Brazil, June 29 - July 17, 1981},
author = {Figueiredo, Djairo Guedes de and Honig, Chaim Samuel},
year = {1982},
doi = {10.1007/BFb0066230},
publisher = {Springer},
booktitle   = {Latin American School of Differential Equations}
}