1. a Soft-Impact Ltd. , P. O. Box 33, 194156, St. Petersburg, Russia
2. b Russian Research Center for Applied Chemistry , 14 Dobrolubov str, 197198, St. Petersburg, Russia
3. c University of Erlangen-Nurnberg, Fluid Mechanics Institute , 4 Cauerstrasse, 91058, Erlangen, Germany
4. d AIXTRON AG , Kackertstr. 15–17, D-52072, Aachen, Germany