Author: F. Herfurth et al. 
Title: Breakdown of the Isobaric Multiplet Mass Equation at A=33, T=3/2 
Year: 2001 
Link: http://dx.doi.org/10.1103/PhysRevLett.87.142501

isotope	frequency ratio	ref. ion	ME Isoltrap (in keV)	ME AME 2003 (in keV)	comment
Ar-33	0.917212520(126)	Ar-36	-9381.9(4.2)	-9384.1(0.4)
Ar-34	0.944747261(105)	Ar-36	-18378.4(3.5)	-18377.2(0.4)
Ar-42	1.166694503(173)	Ar-36	-34422.7(5.8)	-34423(6)
Ar-43	1.194569791(159)	Ar-36	-32009.8(5.3)	-32010(5)