@misc{indiciae3c65fed11983, title = {A pentaerythritol-derived spirodiphosphonate}, author = {HY Elnagar and PF Ranken and FR Fronczek}, year = {2000}, doi = {10.1107/s0108270100006181}, url = {https://pubmed.ncbi.nlm.nih.gov/10935126/}, note = {Source identifier: 10935126} }