A stationary measuring device for checking lengths and angles in a mould for producing 25-ton reinforced concrete power station columns /
Bannier, G.
Unruh, H. P.
Wagner, H. H.
Gray, D. R.
Garston :  Building Research Station, 
1968.
[Reprinted from]: Wissenschaftliche Zeitschrift der Hochschule für Bauwesen, Leipzig, 1967, (1, 2)