The approximate estimate of operational usability of elements of spans is determined in the paper.
AN ESTIMATE OF USABILITY ELEMENTS OF SPANS
2007
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
Metadata by DOAJ is licensed under CC BY-SA 1.0
Scientific Periodicals of Ukraine | 2008
|Convert old fixed spans into vertical lift spans
Engineering Index Backfile | 1934
Old spans move out -- New spans in, on ICRR
Engineering Index Backfile | 1951
Old spans move out -- New spans in, on ICRR
Engineering Index Backfile | 1951
British Library Online Contents | 1996