Siegel, H. (1992)

Siegel, H. (1992). On the influence of sediments and phytobenthos on spectral reflectance at the sea surface.  Beitr. Meereskd., 63: 91-104.

Siegel, H. (1991)

Siegel, H. (1991). Empirical algorithms for the determination of chlorophyll by remote sensing methods.  Beitr. Meeresk., 62: 69-78.

Siegel, H. (1989)

Siegel, H. (1989). Measurements of the spectral reflectance of different kinds of sediments and benthic organisms.  Beitr. Meeresk.,60: 77-78.

Siegel, H. (1987)

Siegel, H. (1987). On the relationship between the spectral reflectance and inherent optical properties of oceanic water.  Beitr. Meeresk., 56: 73-80.