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The authors gratefully acknowledge support from NSERC, MITACS, and Ryerson.
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Bonato, A., Nowakowski, R.J. Sketchy Tweets: Ten Minute Conjectures in Graph Theory. Math Intelligencer 34, 8–15 (2012). https://doi.org/10.1007/s00283-012-9275-2
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DOI: https://doi.org/10.1007/s00283-012-9275-2