@article{702264,
title = {A duality principle for delay equations},
booktitle = {Equadiff 5},
series = {GDML\_Books},
publisher = {BSB B.G. Teubner Verlagsgesellschaft},
address = {Leipzig},
year = {1982},
pages = {84-86},
zbl = {0515.34056},
url = {http://dml.mathdoc.fr/item/702264}
}
Diekmann, Odo. A duality principle for delay equations, dans Equadiff 5, GDML_Books, (1982), pp. 84-86. http://gdmltest.u-ga.fr/item/702264/