Direct manipulation of perceived angular declination affects perceived size and distance: a replication and extension of Wallach and O'Leary (1982)
Attention Perception & Psychophysics (2015) - Comment
pubmed: 25791469  doi: 10.3758/s13414-015-0864-y  issn: 1943-3921  issn: 1943-393x 

Morgan J. C. Williams, Frank H. Durgin