@article{JCA_2013_20_4_JCA_2013_20_4_a14,
     author = {H. Frankowska and D. Tonon},
     title = {Inward {Pointing} {Trajectories,} {Normality} of the {Maximum} {Principle} and the {Non} {Occurrence} of the {Lavrentieff} {Phenomenon} in {Optimal} {Control} under {State} {Constraints}},
     journal = {Journal of convex analysis},
     pages = {1147--118},
     publisher = {mathdoc},
     volume = {20},
     number = {4},
     year = {2013},
     url = {http://geodesic.mathdoc.fr/item/JCA_2013_20_4_JCA_2013_20_4_a14/}
}