by Hasler, K., Bröring, S., Omta, S.W.F., Olfs, H.-W.
Published in European journal of agronomy (01.09.2015)

by Olfs, H.-W., Torres-Dorante, L.O., Eckelt, R., Kosslick, H.
Published in Applied clay science (01.03.2009)

by Himken, M., Lammel, J., Neukirchen, D., Czypionka-Krause, U., Olfs, H.-W.
Published in Plant and soil (01.02.1997)

by Blankenau, K., Olfs, H.-W., Kuhlmann, H.
Published in Journal of agronomy and crop science (1986) (01.06.2002)

by Neukirchen, D., Himken, M., Lammel, J., Czypionka-Krause, U., Olfs, H.-W.
Published in European journal of agronomy (01.11.1999)

by BLANKENAU, K, OLFS, H.-W, KUHLMANN, H
Published in Biology and fertility of soils (2000)

by Blankenau, K, Olfs, H.W
Published in Journal of agronomy and crop science (1986) (01.05.2001)

by Olfs, H.-W., Werner, W.
Published in Soil biology & biochemistry (01.10.1994)

by Olfs, H.W, Scherer, H.W
Published in Biology and fertility of soils (1996)

by Werner, W. (Bonn Univ. (Germany, F.R.). Agrikulturchemisches Inst.), Scherer, H.W, Olfs, H.W
Published in Journal of agronomy and crop science (1986) (01.03.1988)

by Joergensen, R.G, Olfs, H.-W
Published in Zeitschrift fuer Pflanzenernaehrung und Bodenkunde (Germany) (01.02.1998)

by Olfs, H.-W. (Bonn Univ. (Germany). Agrikulturchemisches Inst.)
Published in Agribiological research (Germany) (1995)

by Olfs, H.W, Blankenau, K, Brentrup, F, Jasper, J, Link, A, Lammel, J
Published in Journal of plant nutrition and soil science (01.08.2005)

by Torres-Dorante, L.O, Claassen, N, Steingrobe, B, Olfs, H.W
Published in Journal of plant nutrition and soil science (01.06.2005)

by Bøckman, Oluf Chr, Hans-Werner Olfs
Published in Nutrient cycling in agroecosystems (01.10.1998)

by Torres-Dorante, Luis O., Claassen, Norbert, Steingrobe, Bernd, Olfs, Hans-Werner
Published in Journal of plant nutrition and soil science (01.12.2004)

by HORST, W. J, BüRKERT, A, SCHMIDHALTER, U, SCHENK, M. K, WIREN, N. v, CLAASSEN, N, FLESSA, H, FROMMER, W. B, GOLDBACH, H, MERBACH, W, OLFS, H.-W, RÖMHELD, V, SATTELMACHER, B
Published in Plant and soil (2002)

by Blankenau, K, Olfs, H.-W
Published in VDLUFA-Schriftenreihe (Germany) (1996)

by Blankenau K, Olfs H. W
Published in VDLUFA-Schriftenreihe (Germany). no. 44 (1996)

by Oberholzer H.R, Olfs H. W
Published in VDLUFA-Schriftenreihe (Germany). no. 38 (1994)