Norman W. Johnson, "Convex Solids with Regular Faces", Canadian Journal of Mathematics, 18, 1966, pages 169–200. Contains the original enumeration of the 92 solids and the conjecture that there are no others.
Victor A. Zalgaller. Convex Polyhedra with Regular Faces. Consultants Bureau. 1969. No ISBN. The first proof that there are only 92 Johnson solids.