@inbook {MATHEDUC.05902083,
author = {Malkevitch, Joseph},
title = {Distance and trees in high school biology and mathematics classrooms.},
year = {2011},
booktitle = {BioMath in the schools},
isbn = {978-0-8218-4295-9},
pages = {169-182},
publisher = {Providence, RI: American Mathematical Society (AMS)},
msc2010 = {M64xx (K34xx)},
identifier = {2016b.00917},
}