@misc{indiciae0295c2ab12f6, title = {Communication: Four-component density matrix renormalization group}, author = {Knecht, Stefan and Reiher, Markus and Legeza, Örs}, year = {2014}, doi = {10.1063/1.4862495}, url = {https://www.osti.gov/biblio/22255242}, note = {Source identifier: 22255242} }