Olsen N.H. Heat-induced explosion in high strength concrete / N.H.Olsen, 1991. - 24 p. - Текст : непосредственный.
Olsen N.H. Unixial stress-strain corves of high strength concrete / N.H.Olsen, 1991. - 47 p. - Текст : непосредственный.
Olsen N.H. Design proposal for high strength concrete sections subjected to flexural and axial loads / N.H.Olsen, 1991. - 91 p. - Текст : непосредственный.
Olsen N.H. strength of overlapped deformed tensile reinforcement splices in high strength concrete / N.H.Olsen, 1991. - 160 p. - Текст : непосредственный.