@inproceedings{CTT100781806,
  author = {Masaaki Umehara and Kotaro Yamada},
  title = {Surfaces with light-like points in Lorentz-Minkowski 3-space with applications},
  booktitle = {Springer Proceedings in Mathematics & Statisticsbook series (PROMS, volume 211)},
  year = 2018,
}