Efficiency of ETV diagrams as diagnostic tools for long-term period variations - II. Non-conservative mass transfer, and gravitational radiationN. Nanouris, A. Kalimeris, E. Antonopoulou and H. Rovithis-LivaniouA&A, 575 (2015) A64DOI: https://doi.org/10.1051/0004-6361/201323136