Have scientific societies lost its spirit?
Vol.27,No.1(2017)
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Copyright © 2017 Petr Knecht
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Copyright © 2017 Petr Knecht