TY - BOOK AU - Reader, J. TI - Wavelengths and transition probabilities for atoms and atomic ions: wavelengths, pt. 2, transition probabilities T2 - NSRDS-NBS; 68 PY - 1980/// CY - Washington PB - National Bureau of Standards KW - Astronomy and astrophysics thesaurus KW - Transition probabilities KW - Wavelengths ER -