In publishing this letter by Ya. L. Al'pert, the editors conclude the discussion of his article ``The Outer Ionosphere and Its Transition to the Interplanetary Medium'', deeming a continuation of this discussion inadvisable.
TY JOUR
TI Letter to the Editor
AU Al’pert, Ya. L.
PB Physics-Uspekhi
PY 1968
JO Physics-Uspekhi
JF Physics-Uspekhi
JA Phys. Usp.
VL 11
IS 2
SP 283-283
UR https://ufn.ru/en/articles/1968/2/o/
ER https://doi.org/10.1070/PU1968v011n02ABEH003827