"Discovery of a Relationship Between Spiral Arm Morphology and Supermassive Black Hole Mass in Disk Galaxies", Seigar, M., Kennefick, D., Kennefick, J. & Lacy, C.H.S. 2008, Astrophysical Journal Letters, 678, 93. http://arxiv.org/abs/0804.0773

"The Arkansas Galaxy Evolution Survey (AGES): Supermassive Black Holes in the Universe", Kennefick, Daniel, Kennefick, J., Lacy, C. H. S., & Seigar, M. 2008, Bulletin of the American Astronomical Society, 40, 209 (#212.15.06). http://adsabs.harvard.edu/abs/2008AAS...212.1506K

"A Relationship Between Supermassive Black Hole Mass And Spiral Arm Morphology In Disk Galaxies", Seigar, Marc, Kennefick, D., Kennefick, J., & Lacy, C. H. S. 2008, Bulletin of the American Astronomical Society, 40, 248 (#212.52.03). http://adsabs.harvard.edu/abs/2008AAS...212.5203S

"Binary Supermassive Black Holes", Lacy, Claud H., Kennefick, D., Kennefick, J., & Seigar, M. 2008, Bulletin of the American Astronomical Society, 40, 209 (#212.15.05). http://adsabs.harvard.edu/abs/2008AAS...212.1505L