@article{10_4153_CJM_2014_027_6,
     author = {Roth, Oliver},
     title = {Pontryagin{\textquoteright}s {Maximum} {Principle} for the {Loewner} {Equation} in {Higher} {Dimensions}},
     journal = {Canadian journal of mathematics},
     pages = {942--960},
     year = {2015},
     volume = {67},
     number = {4},
     doi = {10.4153/CJM-2014-027-6},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-2014-027-6/}
}