Acta Physica Polonica A
Effect of glass composition on the relaxation of the 4 Isub(13/2) level of erbium ions in borate and silicate glasses
Witold Ryba‐Romanowski, Bogusława Jeżowska-Trzebiatowska
Acta Physica Polonica A
Witold Ryba‐Romanowski, Bogusława Jeżowska-Trzebiatowska