by Buffington, Andrew, Bisi, Mario M., Clover, John M., Hick, P. Paul, Jackson, Bernard V., Kuchar, Thomas A., Price, Stephan D.
Published in Icarus (New York, N.Y. 1962) (01.07.2016)

by Buffington, Andrew, Bisi, Mario M., Clover, John M., Hick, P. Paul, Jackson, Bernard V., Kuchar, Thomas A., Price, Stephan D.
Published in Icarus (New York, N.Y. 1962) (01.09.2009)

by Li, Jing, Jewitt, David, Clover, John M, Jackson, Bernard V
Published in The Astrophysical journal (10.02.2011)

by Clover, John M, Jackson, Bernard V, Buffington, Andrew, Hick, P. Paul, Bisi, Mario M
Published in The Astrophysical journal (10.04.2010)