@article{articleffd81bcc,
title   = {Hollow-tree: a metric access method for data with missing values},
author = {Brinis, Safia and Traina Junior, Caetano and Traina, Agma Juci Machado},
year = {2019},
doi = {10.1007/s10844-019-00567-8},
journal   = {Journal of Intelligent Information Systems}
}