Die U-Boot-Flottille der Deutschen Marine: ein kleines, aber schlagkraeftiges Element der Flotte
Electric locomotives of Swiss Federal Railroad for use in mountainous regions
Features of light electric car CLe 2/4 of federal railroads of Switzerland
Review of methods of operation of railroad switching yards of gentle incline
Traveling period and fuel consumption in municipal motor-bus network
Outline of new methods for operation and management of gravity railroad switching yards
Gliding and diving motions of aircraft with large static stability
Theoretical mathematical discussion of operation of steam locomotive valves