Seasonal and diurnal variations in UV-B and UV-A irradiances at and below the sea surface at Helgoland (North Sea) over a 6-year period
(2001).
Seasonal and diurnal variations in UV-B and UV-A irradiances at and below the sea surface at Helgoland (North Sea) over a 6-year period
.
Helgoland Marine Research,
55
, 3-11.