@article{GDZPPN002436124, title = {The Weak Solutions to the Evolution Problems of Harmonic Maps.}, journal = {Mathematische Zeitschrift}, volume = {202}, year = {1989}, pages = {69-74}, zbl = {0685.58015}, url = {http://dml.mathdoc.fr/item/GDZPPN002436124} }
Chen, Yunmei. The Weak Solutions to the Evolution Problems of Harmonic Maps.. Mathematische Zeitschrift, Tome 202 (1989) pp. 69-74. http://gdmltest.u-ga.fr/item/GDZPPN002436124/