@article{CTT100684951,
  author = {Hasegawa Masaru and Honda Atsufumi and Kosuke Naokawa and Masaaki Umehara and Kotaro Yamada},
  title = {Intrinsic invariants of Cross Caps},
  journal = {Selecta Math. New Ser.},
  year = 2014,
}

@article{CTT100670100,
  author = {Leoner Ferrer and Francisco Martin and Masaaki Umehara and Kotaro Yamada},
  title = {A construction of a complete bounded null curves in C^3},
  journal = {Kodai Mathematical Journal},
  year = 2014,
}

@article{CTT100670101,
  author = {Francisco Martin and Masaaki Umehara and Kotaro Yamada},
  title = {Flat surfaces in hyperbolic 3-space whose hyperbolic Gauss maps are bounded},
  journal = {Revista Matemática Iberoamericana},
  year = 2014,
}

@article{CTT100754396,
  author = {Shoichi Fujimori and Wayne Rossman and Masaaki Umehara and Kotaro Yamada and Seong-Deog Yang},
  title = {Embedded triply periodic zero mean curvature surfaces},
  journal = {Michigan Math. J.},
  year = 2014,
}