"Teaching Design of Objects and Classes through a Relational Model of Programming" http://citeseer.nj.nec.com/473768.html
"On Composing Problems and Parallel Programs" http://citeseer.nj.nec.com/81112.html (the notation is very heavy and unstructured in the above paper; maybe the authors were trying to meet page count limitations?)
"Proving the Temporal Properties of the Unique World" http://citeseer.nj.nec.com/ath99proving.html
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