[1] Bishop R. L., O'Neill B.:
Manifolds of negative curvature. Trans. AMS, 145 (1969), 1 - 49.
MR 0251664 |
Zbl 0191.52002
[2] Chern S. S., Goldberg S. I.:
On the volume-decreasing property of a class of real harmonic mappings. Amer. J. Math., 97 (1975), 133-147.
MR 0367860 |
Zbl 0303.53049
[3] Eells J., Jr., Sampson J. H.:
Harmonic mappings of Riemannian manifolds. Amer. J. Math., 86(1964), 109-160.
MR 0164306 |
Zbl 0122.40102
[5] Goldberg S. L, Ishihara T:
Harmonic quasiconformal mappings of Riemannian manifolds. Bull. AMS, 80 (1974), 562-566.
MR 0341335 |
Zbl 0283.30025
[6] Goldberg S. L, Ishihara T, Petridis N. C:
Mappings of bounded dilatation. J. of Math., Tokushima Univ., 8 (1974), 1 - 7.
MR 0362136 |
Zbl 0289.30031
[7] Kiernan P. J.:
Quasiconformal mappings and Schwarz's lemma. Trans. AMS, 148 (1970), 185-197.
MR 0255807 |
Zbl 0195.36403
[8] Ruh E. A., Vilms J.:
The tension field of the Gauss map. Trans. AMS, 149 (1970), 569- 573.
MR 0259768 |
Zbl 0199.56102