A list of problems in low-dimensional topology maintained by Kirby (1995). The list currently runs about 380 pages.
Kirby's List
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References
Kirby, R. (Ed.). "Problems in Low-Dimensional Topology." Dec. 22, 1995. http://www.math.berkeley.edu/~kirby/.Referenced on Wolfram|Alpha
Kirby's ListCite this as:
Weisstein, Eric W. "Kirby's List." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/KirbysList.html