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2. Biomagnetic instrumentation;Romani;Rev. Sci. Instrum.,1982
3. Multi-SQUID devices and their applications;Ilmoniemi,1989
4. Magnetoencephalography — theory, instrumentation, and applications to noninvasive studies of the working human brain;Hämäläinen;Rev. Mod. Phys.,1993
5. The SQUID Handbook: Set. Fundamentals and Technology of SQUIDs and SQUID Systems (Vol. I), Applications of SQUIDs and SQUID Systems (vol. II),2006