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[138], 'becomes': [141], 'efficient': [142], 'center': [145], 'DCBH': [150, 188], 'formation': [151, 189], 'prevented.': [153], 'emphasize,': [155], 'however,': [156], 'many': [159], 'collapsing': [163], 'at': [168], 'high': [169], 'redshift': [170], 'self-shielding': [172], 'Therefore,': [176], 'it': [177], 'only': [179], 'fraction': [182], 'such': [184], 'which': [187], 'prevented': [191], 'due': [192], 'reionization.': [194]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2071294497', 'counts_by_year': [{'year': 2024, 'cited_by_count': 1}, {'year': 2023, 'cited_by_count': 1}, {'year': 2022, 'cited_by_count': 1}, {'year': 2021, 'cited_by_count': 1}, {'year': 2020, 'cited_by_count': 4}, {'year': 2019, 'cited_by_count': 5}, {'year': 2018, 'cited_by_count': 4}, {'year': 2017, 'cited_by_count': 7}, {'year': 2016, 'cited_by_count': 9}, {'year': 2015, 'cited_by_count': 6}, {'year': 2014, 'cited_by_count': 3}], 'updated_date': '2025-01-02T13:57:42.718687', 'created_date': '2016-06-24'}