There are two types of in-text citations in APA format: parenthetical and narrative. Parenthetical citations include the author(s) and the date of publication within parentheses. Narrative citations ...

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The researchers propose that these types of features could be inferred by studying the continuous gravitational wave signals of neutron stars; the Laser Interferometer Gravitational Wave ...

These content types should not include original (previously unpublished) research findings and may only contain minimal new supporting data. As they are non-primary articles they are not eligible ...