Lorenc (1992) showed that, particularly for cases where the correlation function used to model B has a simple form, an easily calculated approximation to Q is sufficient to get iteration (32) to converge to the "OI" result.
Lorenc (1992) showed that, particularly for cases where the correlation function used to model B has a simple form, an easily calculated approximation to Q is sufficient to get iteration (32) to converge to the "OI" result.