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111
, 567.05-A512b-P
| American Telephone and Telegraph Company |
1983
567.05-A512b-P,
112
, 567.05-A512b-P
| American Telephone and Telegraph Company |
1983
567.05-A512b-P,
113
, 567.05-A512b-P
| American Telephone and Telegraph Company |
1983
567.05-A512b-P,
114
, 532.305-S769r-P
| Springer-Verlag |
1983
532.305-S769r-P,
115
, 532.305-S769r-P
| Springer-Verlag |
1983
532.305-S769r-P,
116
, 324.05-B979j-P
| Temple University |
1983
324.05-B979j-P,
117
, 003-O62o-P
| [s.n] |
1983
003-O62o-P,
119
The American Educational Research Association , 371.05-A512e-P
| The American Educ. Research Asso. |
1983
371.05-A512e-P,
120
, 567.05-I22i-P
| IEEE Communications Society |
1983
567.05-I22i-P,