摘要
The number of the scientific and technical reports distributed openly by USNTIS in recent years is decreasing.The paper analyzes the cause for the reduction of the distribution volume.
The number of the scientific and technical reports distributed openly by USNTIS in recent years is decreasing.The paper analyzes the cause for the reduction of the distribution volume.
出处
《情报理论与实践》
CSSCI
北大核心
2000年第2期106-107,118,共3页
Information Studies:Theory & Application