Stability of a charged bubble in a dielectric liquid against radial perturbations

It is shown that the critical conditions for instability of a charged vapor-gas bubble in a dielectric liquid against virtual radially symmetric volume perturbations are substantially less stringent than the critical conditions for it to be unstable against virtual distortions of the shape. Pis’ma Zh. Tekh. Fiz. 25, 25–29 (January 12, 1999)