RelBib: Donum natalicum H. S. Nyberg oblatum XXVIII mense Dec. MCMLIV. Edendum curaverunt ERIK GREN, BERNHARD LEWIN, HELMER RINGGREN, STIG WIKANDER. - Uppsala, Almqvist & Wiksells Boktrykeri 1954. 218 s https://relbib.de/Record/1821431588