@article{DCG_1995__13_3-4_131353,
     author = {T. Tokuyama and N. Katoh and K. Iwano},
     title = {On {Minimum} and {Maximum} {Spanning} {Trees} of {Linearly} {Moving} {Points.}},
     journal = {Discrete & computational geometry},
     pages = {161--176},
     publisher = {mathdoc},
     volume = {13},
     number = {3-4},
     year = {1995},
     zbl = {0815.68118},
     url = {http://geodesic.mathdoc.fr/item/DCG_1995__13_3-4_131353/}
}