@article{Aminov_2019, title={On 2-dimensional surfaces in 3-dimensional and 4-dimensional Euclidean spaces.
Results and unsolved problems}, volume={71}, url={http://umj.imath.kiev.ua/index.php/umj/article/view/1416}, abstractNote={We present a survey of the results obtained for 2-dimensional surfaces in $E^3$ and $E^4$ and connected with the Gaussian
curvature and Gaussian torsion. In this connection, we consider the Monge –Amp´ere equations, obtain the generalizations
of Bernstein’s integral formula, and establish some lower estimates for the exterior diameter of surfaces in $E^3$.}, number={1}, journal={Ukrains’kyi Matematychnyi Zhurnal}, author={AminovYu. A.}, year={2019}, month={Jan.}, pages={3-36} }