Published in Scopus, in 1987, in volume 9, pages 146-159

Created: 2014-03-20, modified: 2014-03-20

Published in Scopus, in 1987, in volume 11, pages 1-5

Created: 2014-03-20, modified: 2014-03-20

Published in Scopus, in 1987, in volume 11, pages 6-8

Created: 2014-03-20, modified: 2014-03-20

Published in Scopus, in 1987, in volume 11, pages 9-12

Created: 2014-03-20, modified: 2014-03-20

Published in Scopus, in 1987, in volume 11, pages 13-18

Created: 2014-03-20, modified: 2014-03-20

Published in Scopus, in 1987, in volume 11, pages 19

Created: 2014-03-20, modified: 2014-03-20

Published in Scopus, in 1987, in volume 11, pages 23

Created: 2014-03-20, modified: 2014-03-20

Published in Scopus, in 1987, in volume 11, pages 33-37

Created: 2014-03-20, modified: 2014-03-20

Published in Scopus, in 1987, in volume 11, pages 38-41

Created: 2014-03-20, modified: 2014-03-20

Published in Scopus, in 1987, in volume 11, pages 41-43

Created: 2014-03-20, modified: 2014-03-20

Published in Scopus, in 1987, in volume 11, pages 44-46

Created: 2014-03-20, modified: 2014-03-20

Published in Scopus, in 1987, in volume 11, pages 46

Created: 2014-03-20, modified: 2014-03-20

Published in Scopus, in 1987, in volume 11, pages 47-51

Created: 2014-03-20, modified: 2014-03-20

Published in Scopus, in 1987, in volume 11, pages 52-53

Created: 2014-03-20, modified: 2014-03-20

Published in Scopus, in 1987, in volume 11, pages 54-55

Created: 2014-03-20, modified: 2014-03-20