by Merriam-Webster
by Gang Zheng, Yaning Yang, Xiaofeng Zhu, Robert C. Elston
by Michael Phillips
by Stephen Abbott
by DK
by Karl Pieber, Peter Modl
by Steven Jay Rubin
by Jacqueline Soule
by R. Barkai-Golan
by Suman Singha, Tara Baugher
by Robert E. Gough, Edward Barclay Poling