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Dobsonian telescope - Wikipedia
How to build a Dobsonian mount | BBC Sky at Night Magazine
BUILDING a DOBSONIAN TELESCOPE MOUNT - Instructables
Dobsonian Telescope: Comparison, Mount, How to Use
Build a Dobsonian Mount - Stellafane
Dobsonian Telescope for Beginners - High Point Scientific
Build a Dobsonian Telescope - Stellafane
What Is a Dobsonian Telescope and How Does It Work?
How To Build a Dobsonian Telescope: DIY Astronomy Project