TY - BOOK AU - Dixhoorn,J.J.van AU - Evans,F.J. TI - Physical structure in systems theory: network approaches to engineering and economics SN - 0127124500 AV - QA402 .P5 U1 - 620.7 PY - 1974/// CY - London PB - Academic Press KW - System analysis KW - Bond graphs KW - Electric networks N1 - Papers from a three-day colloquium held at Twente University of Technology in February 1973; Includes bibliographical references and indexes ER -