2:4 w11 10/1 15; w02 8/15 15-17; w02 12/1 14-15; w02 12/15 13-14; w99 11/15 24-25; w98 6/15 13-14; w96 1/15 12; w93 8/1 32; w89 3/15 4-6; w89 12/1 16-19
2:4 w11 10/1 15; w02 8/15 15-17; w02 12/1 14-15; w02 12/15 13-14; w99 11/15 24-25; w98 6/15 13-14; w96 1/15 12; w93 8/1 32; w89 3/15 4-6; w89 12/1 16-19