Published in Raptor Research, in 1974, in volume 8, issue 1/2, pages 1-5

Created: 2017-04-08, modified: 2017-04-08

Published in Raptor Research, in 1974, in volume 8, issue 1/2, pages 6-10

Created: 2017-04-08, modified: 2017-04-08

Published in Raptor Research, in 1974, in volume 8, issue 1/2, pages 11-19

Created: 2017-04-08, modified: 2017-04-08

Published in Raptor Research, in 1974, in volume 8, issue 1/2, pages 20-28

Created: 2017-04-08, modified: 2017-04-08

Published in Raptor Research, in 1974, in volume 8, issue 1/2, pages 29-32

Created: 2017-04-08, modified: 2017-04-08

Published in Raptor Research, in 1974, in volume 8, issue 1/2, pages 33-36

Created: 2017-04-08, modified: 2017-04-08

Published in Raptor Research, in 1974, in volume 8, issue 3/4, pages 45-57

Created: 2017-04-08, modified: 2017-04-08

Published in Raptor Research, in 1974, in volume 8, issue 3/4, pages 60-66

Created: 2017-04-08, modified: 2017-04-08

Published in Raptor Research, in 1974, in volume 8, issue 3/4, pages 67-72

Created: 2017-04-08, modified: 2017-04-08