The following publications are possibly variants of this publication:
- Revised report on the algorithm language ALGOL 60John W. Backus, Friedrich L. Bauer, Julien Green, C. Katz, John McCarthy, Alan J. Perlis, Heinz Rutishauser, Klaus Samelson, Bernard Vauquois, Joseph Henry Wegstein, Adriaan van Wijngaarden, Michael Woodger, Peter Naur. CACM, 6(1):1-17, 1963. [doi]
- Revised report on the algorithmic language ALGOL 60John W. Backus, Friedrich L. Bauer, Julien Green, C. Katz, John McCarthy 0001, Peter Naur, Alan J. Perlis, Heinz Rutishauser, Klaus Samelson, Bernard Vauquois, Joseph Henry Wegstein, Adriaan van Wijngaarden, Michael Woodger. cj, 5(4):349-367, 1963. [doi]
- Supplement to the ALGOL 60 reportMichael Woodger. CACM, 6(1):18-20, 1963. [doi]
- Report on the Algorithmic Language ALGOL 68A. van Wijngaarden, B.J. Mailloux, J.E.L. Peck, C.H.A. Koster. Numerische Mathematik, 14, 1969.