@article{pittir19835,
          volume = {8},
          number = {9},
           month = {September},
          author = {Jason B Castro and Arvind Ramanathan and Chakra S Chennubhotla},
           title = {Categorical Dimensions of Human Odor Descriptor Space Revealed by Non-Negative Matrix Factorization},
       publisher = {Public Library of Science (PLoS)},
            year = {2013},
         journal = {PLoS ONE},
           pages = {e73289 -- e73289},
             url = {http://d-scholarship-dev.library.pitt.edu/19835/}
}