TY - BOOK ID - 134245187 TI - An introduction to extremum principles PY - 1969 PB - London : Butterworths, DB - UniCat KW - Structural analysis (Engineering) KW - Constructions, Théorie des UR - https://www.unicat.be/uniCat?func=search&query=sysid:134245187 AB - ER -