Cui, B. T., & Li, W. N. (1998). A necessary and sufficient condition for oscillation of parabolic equations with several delays. Journal of computational and applied mathematics, 95(1), 153-156. https://doi.org/10.1016/S0377-0427(98)00069-7
Chicago Style (17th ed.) CitationCui, Bao Tong, and Wei Nian Li. "A Necessary and Sufficient Condition for Oscillation of Parabolic Equations with Several Delays." Journal of Computational and Applied Mathematics 95, no. 1 (1998): 153-156. https://doi.org/10.1016/S0377-0427(98)00069-7.
MLA (9th ed.) CitationCui, Bao Tong, and Wei Nian Li. "A Necessary and Sufficient Condition for Oscillation of Parabolic Equations with Several Delays." Journal of Computational and Applied Mathematics, vol. 95, no. 1, 1998, pp. 153-156, https://doi.org/10.1016/S0377-0427(98)00069-7.