Authors
Dumitru Grigore
dumitru.grigore@psychometricsystems.com
Technical Military Academy Bucharest, Bucharest
dumitru.grigore@psychometricsystems.com
© 2017 Dumitru Grigore, published by Association Holistic Research Academic (Hora)
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.