TY - GENERIC DO - 10.20944/preprints202104.0436.v1 UR - http://dx.doi.org/10.20944/preprints202104.0436.v1 TI - Revisiting Van Valen's Red Queen Hypothesis T2 - Preprints AU - Sole, Ricard PY - 2021 DA - 2021/04/16 PB - Preprints