Media type: E-Article Title: Higher-dimensional space-time and unitary bound on the scattering amplitude Contributor: Chaichian, Masud; Fischer, Jan imprint: Elsevier BV, 1988 Published in: Nuclear Physics B Language: English DOI: 10.1016/0550-3213(88)90394-x ISSN: 0550-3213 Origination: Footnote: