GREE Tech Conference 2020 に参加を申し込みました！ https://j.mp/3maOiSx #greetc

GREE Tech Conference 2020 に参加を申し込みました！ https://t.co/9kODrIeDqe #greetc

— Akihiko SHIRAI, Ph.D #VTC20 (@o_ob) September 11, 2020

from Twitter https://twitter.com/o_ob