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4 “... Differential Equations V, which was held at the University of Minho, Braga, Portugal, from the 28th to 30th...”

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13 Subjects: “...Portugal...”

14 “..., Moldova, Morocco, Netherlands, Portugal, Romania, Saudi Arabia, South Korea, Taiwan, Ukraine, USA...”

15 “... (Portugal) in 1987. The series of lectures was split into two concurrent parts. In one part the "formal...”

16 “... (Portugal) in 1987. The series of lectures was split into two concurrent parts. In one part the "formal...”

17 “... International Conference on Complex Networks (CompleNet), 24-28 April, 2023 in Aveiro, Portugal. CompleNet...”

18 “..., Iran, Israel, Italy, Japan, Mexico, The Netherlands, Norway, Poland, Portugal, Spain, Sweden...”

19 “... lecturers and members of the advisory committee. All NATO countries except Holland, Iceland and Portugal...”

20 “... International Colloquium on Mechanical Fatigue of Metals (ICMFM XIX), organized at University of Porto, Portugal...”