@article{JRAM_1984__353_152670,
     author = {Hermann Karcher and John C. Wood},
     title = {Non-existence results and growth properties for harmonic maps and forms.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {165--180},
     publisher = {mathdoc},
     volume = {353},
     year = {1984},
     zbl = {0544.58008},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1984__353_152670/}
}