Tech Notes from Josephson Engineering provide detailed information on selection, use, and maintenance of microphones. Some are are available online here, others will be available soon.

TN5 Optimum Stereo Signal Recording with the Jecklin Disk

TN6, Application of Measurement Microphones for tips on making accurate measurements, specifically for speaker performance testing.

TN7, Using the Series Seven (pdf file)

TN8, Using Josephson Series 5 Mics with SYSid discusses interface and calibration with Bell Labs' SYSid software running on Ariel DSP-16+ hardware.