Neil David Biehn

Biehn, N., Campbell, S. L., Nikoukhah, R., & Delebecque, F. (2001, March). Numerically constructible observers for linear time-varying descriptor systems. AUTOMATICA, Vol. 37, pp. 445–452. https://doi.org/10.1016/S0005-1098(00)00168-0

Betts, J. T., Biehn, N., Campbell, S. L., & Huffman, W. P. (2000). Compensating for order variation in mesh refinement for direct transcription methods. JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS, 125(1-2), 147–158. https://doi.org/10.1016/S0377-0427(00)00465-9

Biehn, N., Campbell, S. L., Jay, L., & Westbrook, T. (2000). Some comments on DAE theory for IRK methods and trajectory optimization. JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS, 120(1-2), 109–131. https://doi.org/10.1016/S0377-0427(00)00306-X