Published in Nuytsia, in 1988, in volume 6, issue 3, pages 279-284

Published in Nuytsia, in 1988, in volume 6, issue 3, pages 285-294

Published in Nuytsia, in 1988, in volume 6, issue 3, pages 295-304

Published in Nuytsia, in 1988, in volume 6, issue 3, pages 305-308

Published in Nuytsia, in 1988, in volume 6, issue 3, pages 309-318

Published in Nuytsia, in 1988, in volume 6, issue 3, pages 319-324

Published in Nuytsia, in 1988, in volume 6, issue 3, pages 325-334

Published in Nuytsia, in 1988, in volume 6, issue 3, pages 335-350

Published in Nuytsia, in 1988, in volume 6, issue 3, pages 351-411