Mauro Garavello, Benedetto Piccoli. Hybrid Necessary Principle. SIAM J. Control and Optimization, 43(5):1867-1887, 2005. [doi]
@article{GaravelloP05,
title = {Hybrid Necessary Principle},
author = {Mauro Garavello and Benedetto Piccoli},
year = {2005},
doi = {10.1137/S0363012903416219},
url = {http://dx.doi.org/10.1137/S0363012903416219},
researchr = {https://researchr.org/publication/GaravelloP05},
cites = {0},
citedby = {0},
journal = {SIAM J. Control and Optimization},
volume = {43},
number = {5},
pages = {1867-1887},
}