1. D. Abramovich, L. Caporaso and S. Payne, The tropicalization of moduli space,
http://arxiv.org/abs/1212.0373
2. Lars V. Ahlfors, “Complex Analysis”, third ed., McGraw-Hill Book Co., New York, 1978, An introduction to the theory of analytic functions of one complex variable, International Series in Pure and Applied Mathematics.
3. V. Berkovich, “Spectral Theory and Analytic Geometry over non-Archimedean Fields”, Mathematical Surveys and Monographs, Vol. 33, American Mathematical Society, Providence, RI, 1990.
4. S. Brannetti, M. Melo and F. Viviani, On the tropical Torelli map, Adv. Math. 226 (2011), 2546–2586.
5. M. Baker, S. Payne and J. Rabinoff, Nonarchimedean geometry, tropicalization, and metrics on curves, ArXiv e-prints (2011), arXiv: 1104.0320.