RESONANCE TRANSFER OF EXCITATION AND MEASUREMENT OF THE HYPERFINE STRUCTURE OF THE ATOM.

RESONANCE (HERTZ COHERENCE) IN HYPERFINE ATOMIC STRUCTURE

EXCITATION TRANSFER BETWEEN ATOMS

EXCITATION TRANSFER IN HELIUM.

Resonant Transfer of Excitation and Change in the Hyperfine Atomic State

MEASUREMENT OF POPULATION TRANSFER BETWEEN THE TWO HYPERFINE LEVELS OF THE 6$sup 3$P$sub 1$ STATE OF $sup 199$Hg UNDER THE EFFECTS OF COLLISIONS BETWEEN HELIUM ATOMS

Resonance Transfer of Excitation in Collision of Heavy Atoms