@misc{indiciae6f211d005c04, title = {New constraints on composition-dependent interactions weaker than gravity.}, author = {EG Adelberger and CW Stubbs and WF Rogers and FJ Raab and BR Heckel and JH Gundlach and HE Swanson and R Watanabe}, year = {1987}, doi = {10.1103/physrevlett.59.849}, url = {https://pubmed.ncbi.nlm.nih.gov/10035888/}, note = {Source identifier: 10035888} }