  Starting from an exact counting of small and positive cosmological constant
states in the Bousso-Polchinski Landscape we recover a well-known approximate
formula and a systematic method of improvement by means of the Poisson
summation formula. This is a contribution to the special Volume published by
the University of Zaragoza in honor of Julio Abad Anto\~nanzas. En memoria de
nuestro amigo, compa\~nero y maestro Julio.
