@article{AUPO_1967_8_1_a4,
     author = {Jank\r{u}, Vladim{\'\i}r},
     title = {On the theory of the optical activity of crystals},
     journal = {Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica},
     pages = {77--89},
     year = {1967},
     volume = {8},
     number = {1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AUPO_1967_8_1_a4/}
}