The power iteration method for determining eigenvectors is usually credited to Richard von Mises (1883–1953) and Hilda Pollaczek-Geiringer (1893–1973). But their 1929 article was declared a “Zusammenfassender Bericht” (= “Summary report”), not research paper. It therefore surprising that this or least its basic ideas can already be found in several publications from mechanics, applied even pure...