Reese, M., Lennartz, D., Marquardsen, T., Hoefer, P., Tavernier, A., Carl, P., et al. (2008). Construction of a liquid-state NMR DNP shuttle spectrometer: first experimental results and evaluation of optimal performance characteristics. Applied Magnetic Resonance, 34(3-4), 301-311. Retrieved from http://www.springerlink.com/content/h41248w650751474/fulltext.pdf.