On estimates of attractors of Lorenz systems. (English. Russian original) Zbl 0716.34061
Vestn. Leningr. Univ., Math. 21, No. 1, 45-51 (1988); translation from Vestn. Leningr. Univ., Ser. I 1988, No. 1, 32-36 (1988).
MSC:
34D05