@article{CTT100713157,
  author = {Naoyuki Kono and Sohichi Hirose},
  title = {Semi-analytical modeling of acoustic beam divergence in homogeneous anisotropic half-spaces},
  journal = {Ultrasonics},
  year = 2016,
}

@inproceedings{CTT100599864,
  author = {Chihiro Matsuoka and Kazuyuki Nakahata and Atsushi Baba and Naoyuki Kono and Sohichi Hirose},
  title = {Comparative study on ultrasonic imaging methods with array transducers},
  booktitle = {Review of Progress in Quantitative Nondestructive Evaluation},
  year = 2008,
}