@article{TM2_2016_XIX_1_a1,
     author = {Arkady Kitover and Mehmet Orhon},
     title = {On a calculus textbook problem},
     journal = {The Teaching of Mathematics},
     pages = {24 },
     year = {2016},
     volume = {XIX},
     number = {1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TM2_2016_XIX_1_a1/}
}