B2.2 Added subdivision.
B2: Typo
B2.2: Cite and \varnothing
B2.2 (c): Partial done.
B: Prism model of M1 and corr. properties from B2.2.
B2.2 Solution. Need text.
B2.2: Nicer equations.
B2: Better Equations .
B2.2 (d) Partial done.
B2.2 (d) Done.
B: TODO: Need to be formulated as regular report text.