TY  - DATA
AU  - H. Ledgard, A. Singer, J. Whiteside
TI  - Directions in Human Factors for Interactive Systems
SN  - 9783540385523
PY  - 1981///
PB  - Springer Berlin Heidelberg
KW  - Computer Science
UR  - https://doi.org/10.1007/3-540-10574-3
ER  -