V. P. Skipetrov, O. A. Enikeev, A. V. Zorkina et al. Aeroions and life. - Saransk, 1995, 96 p.

The monograph develops the ideas of A.L. Chizhevsky, who discovered in 1919 the beneficial effects on health of negative air ions (AEs) of oxygen, which have an increased biological activity.