Adriana Alexandru and  Cristian Tantareanu and  Elena Jitaru,  Towards a Sustained Use of Renewable Energy Sources in Romania.   journal   = {International Journal of Information and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2008, vol. 20(8). 797 - 801
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/6536.