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document.write('<option value="">"Perpetuity" links....');
document.write('<option value="./add/coevoenviro.html">Coevolution and environmental management');
document.write('<option value="./add/peace.html">Peace and War');
document.write('<option value="./add/RoDeepEcolPlat.html">Deep Ecology Platform');
document.write('<option value="chaosintro.htm#perpetuity">Chaos and Complexity');
document.write('<option value="chaosb.htm#perpetuity2">Chaos strange attractor');
document.write('<option value="conc_intro.htm#perpetuity">Holism Introduction');
document.write('<option value="conc_argue2.html#perpetuity">Holism and perpetuity');
document.write('<option value="gem_b.htm#perpetuity">Holistic systems');
document.write('<option value="conc_argue3.html#perpetuity">Cheetahs, lions');
document.write('<option value="conc_parad.htm#perpetuity">Paradigms');
document.write('<option value="conc_model.htm#perpetuity">Fitness and model');
document.write('<option value="conc_summ.htm#perpetuity">Definition');
document.write('<option value="chaosb.htm#perpetuity">In ecosystems');
document.write('<option value="glosoz.htm#perpetuity">Glossary');
document.write('<option value="P&C.htm">Perpetuity and Compatibility');
document.write('<option value="synopsis.htm">Synopsis');
document.write('<option value="gem_lovelock.htm#perpetuity">Negative feedback loop');
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