@article{MMNP_2015_10_3_a1,
     author = {M. Slemrod},
     title = {The {Problem} with {Hilbert{\textquoteright}s} 6th {Problem}},
     journal = {Mathematical modelling of natural phenomena},
     pages = {6--15},
     publisher = {mathdoc},
     volume = {10},
     number = {3},
     year = {2015},
     doi = {10.1051/mmnp/201510302},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.1051/mmnp/201510302/}
}