@article{MarwanBellerFelsenbergetal.2012, author = {Norbert Marwan and Gise Beller and Dieter Felsenberg and Peter Saparin and J{\"u}rgen Kurths}, title = {quantifying changes in the spatial structure of trabecular bone}, journal = {International journal of bifurcation and chaos : in applied sciences and engineering}, volume = {22}, number = {2}, doi = {10.1142/S0218127412500277}, year = {2012}, }