@article{10_4064_sm_35_2_105_110,
     author = {Gra\.zyna Toporowska},
     title = {The minimal-norm problem and {Pontriagin's} maximum principle for {Banach} spaces, {II}},
     journal = {Studia Mathematica},
     pages = {105--110},
     publisher = {mathdoc},
     volume = {35},
     number = {2},
     year = {1970},
     doi = {10.4064/sm-35-2-105-110},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-35-2-105-110/}
}