- Motohiro Takagi, Hiroshi Fujii, Atsushi Shimizu, Yuichiro Urata, and Kazuhisa Yamagishi, "Subjective Video Quality Estimation to Determine Optimal Spatio-temporal Resolution," Picture Coding Symposium (PCS 2013), Dec. 2013.
- Y. Urata, "Audio part of the G.OMVAS for Lower Resolution scenario," ITU-T Contribution COM 12 - C181, Sept. 2014.
- A. Takahashi, Y. Urata, M. Masuda, "Proposal for extension of methodology for deriving equipment impairment factors from instrumental models of Recommendation ITU-T P.834.1," ITU-T Contribution COM 12 - C180, Sept. 2014.
- Y. Urata, "Results of NTT test conducted in March," ITU-T SG12 Q.14 Rapporteurfs meeting in Chemnitz, Jun. 2014.
- Y. Urata, "Proposed models in P.NATS," ITU-T SG12 Q.14 Rapporteurfs meeting in Stockholm, Feb. 2014.