@misc{indiciae2b9c24753949, title = {Compactification of closed bosonic strings.}, author = {S Raby and R Slansky}, year = {1986}, doi = {10.1103/physrevlett.56.693}, url = {https://pubmed.ncbi.nlm.nih.gov/10033260/}, note = {Source identifier: 10033260} }