@inproceedings {beech-spp-2005,
	title = {Survivability in an 8-bit Penna model},
	booktitle = {Proceedings of the 23rd Samahang Pisika ng Pilipinas Physics Congress},
	year = {2005},
	month = {26{\textendash}28 Oct 2005},
	pages = {SPP-2005-111},
	address = {Central Philippine University, Iloilo City},
	abstract = {<div>Intraspecific competition was simulated using an 8-bit Penna Model, showing that one would harvest resources, while the other would be driven to extinction. The ability of a population to compete with their coexistent population is largely affected by intrinsic properties that affect the population saturation. Results suggest that it is the high tolerance of mutations and the high maximum number of offspring in a lifetime that describe a more competitive population. Given these parameters to be equal, the population which fluctuates less about the equilibrium population is preferred.</div>},
	author = {Maria Donna N Beech and Ronald S. Banzon}
}
@inproceedings {beech-spp-2004,
	title = {Periodicity in a Penna model},
	booktitle = {Proceedings of the 22nd Samahang Pisika ng Pilipinas Physics Congress},
	year = {2004},
	month = {25{\textendash}27 Oct 2004},
	pages = {11},
	address = {Bohol Tropics Resort, Tagbilaran City},
	abstract = {<div>A population of an asexually reproducing species is simulated using a suggested 8-bit string length implementation and a modified implementation of the Verhulst factor. The age structure of the population generated by this implementation is found to be non-Gompertzian and time-dependent. The change in age structure is shown to be a result of the periodic behavior of the population of its component ages, with relatively similar period, but different phase.</div>},
	author = {Maria Donna N Beech and Ronald S. Banzon}
}