1. Asteroid short-periodic perturbation: critical eccentricity and inclination for analytically derived mean semimajor axes Creator: Knežević, Z. and Jovanović, B. Format: bez média and svazek Type: model:article and TEXT Subject: asteroid motion, eccentricity, and inclination Language: Czech Description: Preliminary results are present of an attempt to define threshold values of eccentricity and inclination for which a second order - fourth degree analytical theory of asteroid moion still provides mean semimajor axes of acceptable accuracy. Rights: http://creativecommons.org/publicdomain/mark/1.0/ and policy:public