Parinaz Barakhshan, Adam Marrs, Akshay Bhosale, Bindiya Arora, Rudolf Eigenmann, Marianna S. Safronova, Portal for High-Precision Atomic Data and Computation (version 2.0). University of Delaware, Newark, DE, USA. URL: https://www.udel.edu/atom/ [February 2022]. Also cite original data source when reference is given.
@Misc{UDportal, author = {Parinaz Barakhshan and Adam Marrs and Akshay Bhosale and Bindiya Arora and Rudolf Eigenmann and Marianna S. Safronova}, HOWPUBLISHED = {{ extit{Portal for High-Precision Atomic Data and Computation}} (version 2.0). University of Delaware, Newark, DE, USA. URL: {https://www.udel.edu/atom}} [February 2022].}}}
Also cite original data source when reference is given.