1 “..., on June 12-14, 2017. The conference is being organised in memory of late Professor Ragnar Sigbjörnsson...”

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9 “... • Berufstätige, die bei ihrer Arbeit auf Fachrecherche angewiesen sind   Die Autoren Dr. Ragnar Müller ist...”

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13 “...The Great Depression of the 1930s gave birth to a branch of economics that in 1933 Ragnar Frisch...”

14 “... this dialogue is established with semiotic-constructivist psychologists such as Jaan Valsiner, Ragnar Rommetveit...”

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17 Table of Contents: “... time of modern well data configurations (Ragnar Hauge) -- Machine learning methods for sweet spot...”

18 Table of Contents: “...: Setting the Direction -- Jan Tinbergen—Ragnar Frisch 1969 -- Samuelson 1970 -- Gunnar Myrdal—Friedrich von...”