Research into the dicalcium silicate falling of blast furnace slags : (Untersuchungen zum Dicalciumsilikat - Zerfall von Hüttenschlacken) /
Elstner, I.
Leers, K. J.
Niesel, K.
Garston :  Building Research Station, 
1971.
Originally published in Tonindustrie-Zeitung, 1970, 94(8), 317-31.