@misc{indiciaeff69c8b4d573, title = {Phenomenological mass limits on extra Z of E6 superstrings.}, author = {V Barger and NG Deshpande and K Whisnant}, year = {1986}, doi = {10.1103/physrevlett.56.30}, url = {https://pubmed.ncbi.nlm.nih.gov/10032521/}, note = {Source identifier: 10032521} }