Altamira : A note upon the palaeolithic paintings in the cave of Altamira near Santillane del Mar in the Spanish province of Santander

von Riddell, W. H.
Veröffentlicht 1938

Comparison of high-quality and low-quality hays for raising dairy calves : birth to 24 months of age

von Newlander, J. A.
Veröffentlicht 1937

Rocket development with liquid propellants : from the early days with Max Valier to the A4 (V2) long-range rocket (1930 to 1942) ; a brief technical overview

von Riedel, W. H. J.
Veröffentlicht 2005