共 50 条
- [31] Counterfactuals and Causal Inference: Methods and Principles for Social Research [J]. CANADIAN JOURNAL OF SOCIOLOGY-CAHIERS CANADIENS DE SOCIOLOGIE, 2008, 33 (02): : 432 - 435
- [32] DEVELOPMENT OF PHYSICAL PRINCIPLES UNDERLYING THE SEISMIC METHODS OF RESEARCH [J]. IZVESTIYA AKADEMII NAUK SSSR FIZIKA ZEMLI, 1990, (08): : 125 - 128
- [33] PRINCIPLES OF USE OF RADIOISOTOPES IN MYCORRHIZAL STUDIES [J]. METHODS IN MICROBIOLOGY, 1991, 23 : 295 - 307
- [34] Research of control track calculating methods for free curved surface NC grinding [J]. ADVANCES IN GRINDING AND ABRASIVE TECHNOLOGY XIII, 2006, 304-305 : 526 - 529
- [37] Research on the NC system based on STEP-NC [J]. Zhongguo Jixie Gongcheng/China Mechanical Engineering, 2003, 14 (09):
- [38] THE APPLICATION OF MODERN ENGINEERING METHODS TO ANATOMICAL RESEARCH - PRINCIPLES AND METHODOLOGY [J]. ANATOMIA CLINICA, 1982, 4 (03): : 189 - 196
- [39] BASIC PRINCIPLES AND METHODS OF ORGANIZATIONAL RESEARCH - GERMAN - KOSIOL,E [J]. ZEITSCHRIFT FUR BETRIEBSWIRTSCHAFT, 1961, 31 (03): : 180 - 182