Geometric properties of some level lines in plane and axisymmetric gas flows
A. I. Rylov

This publication is cited in the following articles:

1. Rylov A.I., “The topology of the zero-level lines of the components of the acceleration vector in subsonic flows”, J. Appl. Math. Mech., 70:3 (2006), 361–372            
2. Rylov A.I., “A non-stationary analogue of Chaplygin's equations in one-dimensional gas dynamics”, J. Appl. Math. Mech., 69:2 (2005), 222–233