... (1) Shostrom & Riley (1968), (2) Zimmer, Wightman & McArthur (1970), (3) Zimmer & Pepyne (1971), (4) Zimmer & Cowles (1972), (5) Zimmer, Hakistan & Newby (1972), (6) Stoten & Goos (1974), (7) Barak & LaCrosse (1975), (8) Woodward, Burck & Sweeney (1975 LaCrosse & Barak (1976), (10) Helweg & Gaines (1977), (11) Kelly & Byrne (1977), (12) Meara, Shannon & Pepinsky (1979), (13) Hill, Thames & Rardin (1979, (14) Chen (1981), (15) Gustavson, Cundick & Lambert (1981), (16) Meara et al., (1981), (17) Mercier & Johnson (1984), (18) Lichtenberg & Heck (1986), (19) Miller, Prior & Springer (1987, (20) Kiesler & Goldston (1988), (21) Essig & Russel (1990), (22) Tracey & Guinee (1990), (23) Weinrach (1990b), (24) Andrews (1991), (25) Brodley (1994), (26) Gazzola & Stalikas (1997), (27) Wickmann & Campbell (2003, (28) Takens (2005), (29) Klein & Galliker (2007), (30) Keats (2008), (31) Goates-Jones & Hill (2008), (32) Reilly & Jacobus (2008), (33) Moreira & Gonçalves (2011), (34) Daniels (2012), (35) Uşaklı (2012 Kirillova & Keil (2013). ...