Authors: M Kronenberg; J Goverman; R Haars; M Malissen; E Kraig; L Phillips; T Delovitch; N Suciu-Foca; L Hood Journal: Nature Date: 1985 Feb 21-27 Impact factor: 49.962
Authors: Y Uematsu; S Ryser; Z Dembić; P Borgulya; P Krimpenfort; A Berns; H von Boehmer; M Steinmetz Journal: Cell Date: 1988-03-25 Impact factor: 41.582