@article{DCG_1991__6_4_131162,
     author = {H. Maehara},
     title = {On {Graver's} {Conjecture} {Concerning} the {Rigidity} {Problem} of {Graphs.}},
     journal = {Discrete & computational geometry},
     pages = {339--342},
     publisher = {mathdoc},
     volume = {6},
     number = {4},
     year = {1991},
     zbl = {0724.05035},
     url = {http://geodesic.mathdoc.fr/item/DCG_1991__6_4_131162/}
}