Choudhary, Aruni Algorithms and Complexity, MPI for Informatics, Max Planck Society; International Max Planck Research School, MPI for Informatics, Max Planck Society;
https://publikationen.sulb.uni-saarland.de/handle/20.500.11880/26911 (Any fulltext)
Choudhary, A. (2017). Approximation Algorithms for Vietoris-Rips and Ĉech Filtrations. PhD Thesis, Universität des Saarlandes, Saarbrücken. doi:10.22028/D291-26959.