1           2008-05-11.32  
 2           2008-05-12.28  
 3           2008-05-25.20  
 4           2008-05-29.20  
 5           2008-05-30.22  
 6           2008-06-03.22  
 7           1975-10-28.08  Schober et al. (1977) 
 8           1975-11-11.09  Schober et al. (1977) 
 9           1975-11-22.07  Schober et al. (1977) 
10           1975-11-23.02  Schober et al. (1977) 
11           1979-09-02.18  Schober (1982) 
12           1979-09-03.27  Schober (1982) 
13           1979-09-04.23  Schober (1982) 
14           1979-09-05.23  Schober (1982) 
15           1979-09-09.26  Schober (1982) 
16           2012-04-27.97  
17           2012-05-19.92  
18           2012-05-22.94  
19  1998-02-12--2012-04-23  Lowell