@article{Raşa_1981, title={On a measure - theoretical concept of convexity}, volume={10}, url={https://ictp.acad.ro/jnaat/journal/article/view/1981-vol10-no2-art12}, abstractNote={Not available.}, number={2}, journal={Anal. Numér. Théor. Approx.}, author={Raşa, I.}, year={1981}, month={Aug.}, pages={217–224} }