共 50 条
- [41] LAUNCHING OF TELEFAX SERVICE ON 1ST JAN 1979 NACHRICHTENTECHNISCHE ZEITSCHRIFT, 1978, 31 (12): : 868 - 869
- [42] Prospective and in-service teachers’ perspectives about launching a problem Journal of Mathematics Teacher Education, 2017, 20 : 159 - 201
- [46] Research of knowledge service offering mechanism of learning object repository ADVANCED COMPUTER TECHNOLOGY, NEW EDUCATION, PROCEEDINGS, 2007, : 116 - 120