@misc{indiciae820531a2ed93, title = {Angle-resolved positronium emission spectroscopy.}, author = {DM Chen and S Berko and KF Canter and KG Lynn and AP Mills and LO Roellig and P Sferlazzo and M Weinert and RN West}, year = {1987}, doi = {10.1103/physrevlett.58.921}, url = {https://pubmed.ncbi.nlm.nih.gov/10035073/}, note = {Source identifier: 10035073} }