TY - GEN AU - Schramm, Raymond E AU - Clark, A Van C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1988-01-01 05:01:00 DO - https://doi.org/10.6028/NIST.IR.88-3906 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1988 TI - Report No. 18 ::ultrasonic railroad wheel inspection using EMATS ER -