Back رودلف إرنست لانغر Arabic رودلف ارنست لانجر ARZ Rudolph Ernest Langer German Rudolf Ernest Langer French Rudolf E. Langer Italian Rudolph Langer Portuguese
Rudolf Ernest Langer (8 March 1894 – 11 March 1968) was an American mathematician, known for the Langer correction and as a president of the Mathematical Association of America.[1]