@conference{122841, author = {Thomas Heavner and Jon Shirley and F Levi and Dai Yu and Steven Jefferts}, title = {Frequency Biases in Pulsed Atomic Fountain Frequency Standards Due to Spurious Components in the Microwave Spectrum}, year = {2006}, month = {2006-01-01}, publisher = {2006 IEEE Intl Freq. Cont. Symp. , Miami, FL}, language = {en}, }