WASET
    I. Bolgzda and  E. Olehnovica,  Structure of Doctoral Students- Research Competences in Sustainability Context.   journal   = {International Journal of Educational and Pedagogical Sciences}, [online]. World Academy of Science, Engineering and Technology.
    June 2012, vol. 66(6). 1181 - 1184
    [viewed 24 April 2024]. Available from: https://publications.waset.org/pdf/4183.