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\bibitem[{Cecconi \& Tronci}(2000)]{Cecconi+Tronci2000} Michele Cecconi, and Enrico Tronci. "Requirements Formalization and Validation for a Telecommunication Equipment Protection Switcher." In \textit{Hase}. IEEE Computer Society, 2000. ISSN: 0-7695-0927-4. DOI: 10.1109/HASE.2000.895456.

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