TY - GEN TI - In situ monitoring of polymer 3D printing using ultrasonic Lamb waves generated by a 3D printed wedge AU - Nathan Kizer AU - Christopher M. Kube JO - The Journal of the Acoustical Society of America PY - 2021 DO - 10.1121/10.0008386 UR - https://doi.org/10.1121/10.0008386 ER -