@article{ASNSP_1990_4_17_3_415_0, author = {Giaquinta, M. and Modica, G. and Sou\v{c}ek, J.}, title = {Liquid crystals : relaxed energies, dipoles, singular lines and singular points}, journal = {Annali della Scuola Normale Superiore di Pisa - Classe di Scienze}, pages = {415--437}, publisher = {Scuola normale superiore}, volume = {Ser. 4, 17}, number = {3}, year = {1990}, zbl = {0760.49026}, mrnumber = {1079984}, language = {en}, url = {http://www.numdam.org/item/ASNSP_1990_4_17_3_415_0/} }