The Road of Health
1938
Tractor Ted in Springtime
2007
Tractor Ted All About Tractors
2014
Tractor Ted Meets the Horses
2010
Tractor Ted Goes Farming
2017
Tractor Ted All About Harvesters
2016
Rabies in a Human Patient
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Unstoppable Solar Cycles
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Theory of the C-1 Autopilot, Part 1: Basic Principles
1943
Mot i brøstet – 30th Anniversary
2023