1. S. Akamine, Behavior of the Gaussian Curvature of Timelike Minimal Surfaces with Singularities, submitted, arXiv:1701.00238
2. G. Bellettini, J. Hoppe, M. Novaga, G. Orlandi, Closure and convexity results for closed relativistic strings. Complex Anal. Oper. Theory 4, 473–496 (2010)
3. S. Chandrasekhar, Surface tension of liquid crystals. Mol. Cryst. 2, 71–80 (1966)
4. J.N. Clelland, Totally quasi-umbilic timelike surfaces in $$\mathbb{R}^{1,2}$$ R 1 , 2 . Asian J. Math. 16, 189–208 (2012)
5. S. Fujimori, Y.W. Kim, S.-E. Koh, W. Rossman, H. Shin, M. Umehara, K. Yamada, S.-D. Yang, Zero mean curvature surfaces in Lorentz-Minkowski $$3$$ 3 -space and $$2$$ 2 -dimensional fluid mechanics. Math. J. Okayama Univ. 57, 173–200 (2015)