TY - BOOK ID - 136803507 TI - Symposium : rapid excavation PY - 1970 SN - 0309018420 PB - Washington (D.C.): National academy of sciences DB - UniCat KW - Excavation KW - Nuclear excavation KW - Tunneling KW - Congresses KW - Congresses KW - Congresses UR - https://www.unicat.be/uniCat?func=search&query=sysid:136803507 AB - ER -