Analysis of information sources in references of the Wikipedia article "Principe d'Anna Karénine" in French language version.
« For systems belonging to the singular part of the stability boundary a small change of the parameters is more likely to send the system into the unstable region than into the stable region. This is a manifestation of a general principle stating that all good things (e.g. stability) are more fragile than bad things. It seems that in good situations a number of requirements must hold simultaneously, while to call a situation bad even one failure suffices. »
« Successful ecological risk assessments are all alike; every unsuccessful ecological risk assessment fails in its own way. (...) the Anna Karenina principle also applies to ecological risk assessments involving multiple stressors. »