1. Alonso, J., Martini, H., Wu, S.: On Birkhoff orthogonality and isosceles orthogonality in normed linear spaces. Aequationes Math. 83, 153–189 (2012)
2. Balestro, V., Martini, H., Shonoda, E.: Concepts of curvatures in normed planes. Expos. Math. 37(4), 247–281 (2019)
3. Balestro, V., Martini, H., Teixeira, R.: Differential geometry of immersed surfaces in three-dimensional normed spaces. Preprint, arXiv:1707.04226v2 (2017)
4. Balestro, V., Martini, H., Teixeira, R.: Some topics in differential geometry of normed spaces, to appear in Adv. Geom.. arXiv:1709.01399 (2017)
5. Balestro, V., Martini, H., Teixeira, R.: Surface immersions in normed spaces from the affine point of view. Geom. Dedic. 201, 21–31 (2019)