1.
Differential-delay equations with two time lags. Providence, R.I.: American Mathematical Society; 1978.
Differential-delay equations with two time lags. Providence, R.I. : American Mathematical Society, 7 mai 1978. ISBN 0-8218-2205-5
Nussbaum Roger D. (1978). Differential-delay equations with two time lags. American Mathematical Society.
Style de citation MLA (8e éd.)Nussbaum Roger D. Differential-delay Equations with Two Time Lags. American Mathematical Society, 1978.
Attention : ces citations peuvent ne pas être correctes à 100%.