@misc{indiciae7a15de6c0cc1, title = {Validity of the extended electron-electron cusp condition.}, author = {K Burke and JC Angulo and JP Perdew}, year = {1994}, doi = {10.1103/physreva.50.297}, url = {https://pubmed.ncbi.nlm.nih.gov/9910892/}, note = {Source identifier: 9910892} }