https://www.nature.com/articles/nmeth.3971
Haghverdi, L., Büttner, M., Wolf, F. A., Buettner, F., & Theis, F. J. (2016). Diffusion pseudotime robustly reconstructs lineage branching. Nature Methods, 13(10), 845–848. https://doi.org/10.1038/nmeth.3971
(first page summarizes the Pseudotime algorithm)
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