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Conditional and unconditional nonlinear stability for convection induced by absorption of radiation in a porous medium (2004)
Journal Article

Convection induced by the selective absorption of radiation is investigated, for the case of an internal heat source that is modelled quadratically with respect to concentration. The growth rate for the linearised system is shown to be real, and a li... Read More about Conditional and unconditional nonlinear stability for convection induced by absorption of radiation in a porous medium.

Northern European retired residents in nine southern European areas: Characteristics, motivations and adjustment (2004)
Journal Article

During the last two decades, northern European retirement residence in the southern European sunbelt has grown strongly and its forms have rapidly changed, but standard demographic and social statistical sources provide no information about the flows... Read More about Northern European retired residents in nine southern European areas: Characteristics, motivations and adjustment.