What has the author Rudolf Brotanek written?

Alfred B. Bortz has written:

'Catastrophe!' -- subject(s): Engineering, Juvenile literature, Accidents, Disasters, System failures (Engineering)

'Seven wonders of exploration technology'

'Collision course!' -- subject(s): Juvenile literature, Asteroids, Collisions with Earth, Disasters, Comets

'Astrobiology' -- subject(s): Juvenile literature, Space Biology, Life on other planets