context: In the late 1960s, ideas reappeared that dinosaurs were not organized like modern reptiles. It all started with the work of John Ostrom, devoted to the deinonychus and the evolution of birds [6]. His pupil, Robert Becker, popularized the idea in a number of works, starting with the “Dinosaur Supremacy” of 1968 [7]. In his publications, Becker argued the idea that dinosaurs and many others, even earlier archosaurs, were active warm-blooded animals, capable of long periods of activity. Becker also pointed out that such ideas were widespread in the late XIX - early XX centuries, but then (as well as suggestions about the connection of dinosaurs with birds) were abandoned - which gave him reason to call the XX century the era of “depression of dinosaurs”, and the scientific revolution that took place with his participation - the “Renaissance of dinosaurs”. In April 1975, an article with the appropriate title, “Dinosaur Renaissance,” was published in Scientific American magazine.
question: In what year was the work of Robert T. Becker “The Renaissance of Dinosaurs”?
answers.text: 1975