Modern stairways and their antecedents
International studio
1916
Miscellaneous
Electronic Resource
German
Moving stairways for moving people
Engineering Index Backfile | 1951
Moving stairways on the London underground railways
Engineering Index Backfile | 1927
Traveling stairways for the elevated railways, New York
Engineering Index Backfile | 1900
DESIGN AND SAFETY CRITERIA FOR PASSENGER BOARDING STAIRWAYS
SAE Technical Papers | 1967
Design and Safety Criteria for Passenger Boarding Stairways
SAE Technical Papers | 2012