Ivan Raikov, February 16, 2012
![Ivan smiling](/sites/default/files/styles/embed_lg_1x/public/2023-09/ivan-raikov.jpg?itok=Q2YXkpga)
Date:
16 February 2012
Copyright OIST (Okinawa Institute of Science and Technology Graduate University, 沖縄科学技術大学院大学). Creative Commons Attribution 4.0 International License (CC BY 4.0).