:::::1) Stalin's speech: it is quite possible that the latest refound by ms. Bushueva is a fraud, but the original quotation from 1939 by the French news agency is real. Anyway, seems we can only add different points of view to the article, nothing more. Maybe authenticity problem cannot ever solve.  
 :::::2) MRP article. After your answers, I have done some research. And as a historian amateur (not my speciality) I spent some time to study these issues. Now, I try to answer if there ever was a Russian and/or Soviet nationalism before the WWII. I found a book "The Fall of an Empire, the Birth of a Nation", where professor Timo Vihavainen wrote an article about this exact issue. I have added some point to the article Korenizatsiya and I am thinking if I should start the article Russian chauvinism. Anyway, the right answer is 1937, when Russian language and Russian values was praised central press frequently. From March 1938 Russian become a compulsory subject in all Soviet schools. NOTE! I read couple of books about the Soviet propaganda and books covers during the Winter War, and patriotism was note a first subject in those. The covers were named "The heroes of the battle against White-Finns", "The heroes of the Finnish Campaign", "Our artillery men in the Finnish Front", "Fearless pioneers in the Finnish Front"... but there was a one book cover dated 20 January 1941: "In the battle for the Socialist Motherland (V votyih za sozialisticheskuyu rodinu)". Seems some sort of Soviet patriotism before the German attack.