@article{CTT100860387,
  author = {Natee THONG-UN and Wongsakorn WONGSAROJ and Weerachon TREENUSON and Jirasak CHANWUTITUM and Hiroshige KIKURA},
  title = {Doppler Frequency Estimation using Maximum Likelihood Function for Low Ultrasonic Velocity Profile},
  journal = {Acoustical Science and Technology},
  year = 2017,
}

@inproceedings{CTT100860956,
  author = {Wongsakorn WONGSAROJ and Ari HAMDANI and Natee THONG-UN and Hideharu TAKAHASHI and Hiroshige KIKURA},
  title = {Ultrasonic Measurement of Velocity Profile on Bubbly Flow Using Fast Fourier Transform (FFT) Technique},
  booktitle = {},
  year = 2017,
}