@article{CC_2009_38_4A_a3,
     author = {Pesch, Hans Josef and Plail, Michael},
     title = {The maximum {Principle} of optimal control: {A} history of ingenious ideas and missed opportunities},
     journal = {Control and Cybernetics},
     pages = {973--995},
     publisher = {mathdoc},
     volume = {38},
     number = {4A},
     year = {2009},
     zbl = {1236.49005},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CC_2009_38_4A_a3/}
}