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Lawrence Robinson and Karl N. Levitt.
Proof techniques for hierarchically structured programs
. Communications of the ACM, 20(4):271--283, April 1976.
Robinson, L., Levitt, K.N., "
Proof techniques for hierarchically structured programs
," Comm. of the ACM, Vol. 20, No. 4, April 1977, pp. 271-283.
L. Robinson and K. Levitt. "
Proof Techniques for Hierarchically Structured Programs
". Comm. ACM 20, 4 (April 1977).
Robinson, L., Levitt, K.N., "
Proof techniques for hierarchically structured programs
," Comm. of the ACM, Vol. 20, No. 4, April 1977, pp. 271-283.
Lawrence Robinson and Karl N. Levitt.
Proof techniques for hierarchically structured programs
. Communications of the ACM, 20(4):271--283, April 1976.
L. Robinson and K. Levitt.
Proof Techniques for Hierarchically Structured Programs
. Comm. ACM 20(4), April, 1977.
Robinson, L., Levitt, K.N., "
Proof techniques for hierarchically structured programs
," Comm. of the ACM, Vol. 20, No. 4, April 1977, pp. 271-283.
Robinson, L., and K. N. Levitt, "
Proof Techniques for Hierarchically Structured Programs
," Communications of the ACM, Vol. 20 No. 4, April 1977.
Lawrence Robinson and Karl N. Levitt.
Proof techniques for hierarchically structured programs
. Communications of the ACM, 20(4):271-283, April 1976.
L. Robinson and K.N. Levitt.
Proof techniques for hierarchically structured programs
. Communications of the ACM, 20(4):271-283, April 1977.
Lawrence Robinson and Karl N. Levitt.
Proof techniques for hierarchically structured programs
. Communications of the ACM, 20(4):271-- 283, April 1976.
L. Robinson and K.N. Levitt.
Proof techniques for hierarchically structured programs
. Communications of the ACM, 20(4):271--283, April 1977.
L. Robinson and K.N. Levitt.
Proof techniques for hierarchically structured programs
. Communications of the ACM, 20(4):271--283, April 1977.
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