Published in Scopus, in 1986, in volume 8, pages 104-123

Published in Scopus, in 1986, in volume 8, pages 124-127

Published in Scopus, in 1986, in volume 8, pages 128-130

Published in Scopus, in 1986, in volume 10, pages 1-9

Published in Scopus, in 1986, in volume 10, pages 10-19

Published in Scopus, in 1986, in volume 10, pages 20-26

Published in Scopus, in 1986, in volume 10, pages 27-28

Published in Scopus, in 1986, in volume 10, pages 28-29

Published in Scopus, in 1986, in volume 10, pages 29-32

Published in Scopus, in 1986, in volume 10, pages 33-40

Published in Scopus, in 1986, in volume 10, pages 41-42

Published in Scopus, in 1986, in volume 10, pages 42-44

Published in Scopus, in 1986, in volume 10, pages 45-47

Published in Scopus, in 1986, in volume 10, pages 47-49

Published in Scopus, in 1986, in volume 10, pages 49-50

Published in Scopus, in 1986, in volume 10, pages 51-52

Published in Scopus, in 1986, in volume 10, pages 52-55

Published in Scopus, in 1986, in volume 10, pages 55-58

Published in Scopus, in 1986, in volume 10, pages 61-82

Published in Scopus, in 1986, in volume 10, pages 83-86