Jorge A. Becerril, Karla L. Cortez, Javier F. Rosenblueth
      Critical cones for regular controls with inequality constraints
      International Journal of Mathematical Analysis, Vol. 12, 2018, no. 10, 439-468
      https://doi.org/10.12988/ijma.2018.8856

Copyright © 2018 Jorge A. Becerril, Karla L. Cortez and Javier F. Rosenblueth. This article is distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.