I. U. Bronshteĭn

• Smooth invariant manifolds and normal forms
• Extensions of minimal transformation groups
• Invariantnye mnogoobrazii͡a︡ i normalʹnye formy
• Minimalʹnye gruppy preobrazovaniĭ
• Neavtonomnye dinamicheskie sistemy
• Rasshirenii͡a︡ minimalʹnykh grupp preobrazovaniĭ