@article{umetani2012guideddesign,
 author = {Umetani N, Igarashi T, Mitra NJ},
 title = {Guided Exploration of Physically Valid Shapes for Furniture Design},
 year = {2012},
 journal = {ACM Trans. on Graphics (TOG) (Proc. SIGGRAPH)},
 volume = {31},
 number = {4},
}