1. St. Petersburg Academic University; 8/3 Khlopina St Petersburg 194021 Russia
2. Ioffe Institute; 26 Polytechnicheskaya St Petersburg 194021 Russia
3. Solar Dots Ltd, 4-6 E (1H-4H), T-525; 17 Liniya V.O. St Petersburg 199034 Russia
4. University of Notre Dame; Notre Dame IN 46556 USA