Stability of Linear Differential Equations in Banach Algebras. Gert Almkvist — 1964 Mathematica Scandinavica
Partitions with parts in a finite set and with parts outside a finite set. Almkvist, Gert — 2002 Experimental Mathematics
Borwein and Bradley's Apéry-like formulae for ζ ( 4 n + 3 ) . Almkvist, Gert; Granville, Andrew — 1999 Experimental Mathematics
Some new formulas for π . Almkvist, Gert; Krattenthaler, Christian; Petersson, Joakim — 2003 Experimental Mathematics