| Reference Label | Details |
|---|---|
| Sugar 1991 | J. Sugar and A. Musgrove, J. Phys. Chem. Ref. Data 20, 859-914 (1991) Energy Levels of Krypton, Kr I through Kr XXXVI |
| Minnhagen 1969 | L. Minnhagen, H. Strihed, and B. Petersson, Ark. Fys. (Stockholm) 39, 471493 (1969) Revised and Extended Analysis of Singly Ionized Krypton, Kr II |