A correction to Kurt Metzger's algorithm in the paper "On the probability density of intersymbol interference"
David D. Pokrajac, Zorica Bečanović Nikolić · IEEE Transactions on Communications · 1995
Using an operator approach this letter shows that Metzger's Algorithm for pdf computation (see ibid., vol. 35, pp. 396-402, Apr 1987) has an error in formula (15), which defines the procedure of generating the successive series of pdf approximation. A correction is given.