TY - BOOK AU - Piotr T. ChruĊ›ciel TI - Elements of General Relativity SN - 978-3-030-28416-9 SN - 2296-455X PY - 2019/// PB - Springer International Publishing UR - https://doi.org/10.1007/978-3-030-28416-9 UR - https://link.springer.com/openurl?genre=book&isbn=978-3-030-28416-9 ER -