@misc{https://doi.org/10.7914/sn/ld, doi = {10.7914/SN/LD}, url = {https://www.fdsn.org/networks/detail/LD/}, author = {{Lamont Doherty Earth Observatory (LDEO), Columbia University}}, title = {Lamont-Doherty Cooperative Seismographic Network}, publisher = {International Federation of Digital Seismograph Networks}, year = {1970} }