# Altshuller G.S., ‘Small Infinite Worlds: Standards For Solving Inventive Problems’, in ‘A Thread in a Labyrinth’, Karelia, 1988, pp 183–185.
# Altshuller G.S., ‘Small Infinite Worlds: Standards For Solving Inventive Problems’, in ‘A Thread in a Labyrinth’, Karelia, 1988, pp 183–185.