@article{paperid:1065308, author = {M. Dehghani}, title = {Characterizations of Smooth Spaces by ρ Orthogonality}, journal = {Houston Journal of Mathematics}, year = {2017}, volume = {43}, number = {4}, month = {October}, issn = {0362-1588}, pages = {1187--1208}, numpages = {21}, keywords = {Orthogonality space; orthogonality preserving mappings; $\rho_*$-orthogonality; norm derivative; smooth normed spaces}, }