div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imagea href=https:reader043fdocumentsinreader043viewer2022020405575068371a28ab0f07af20bdhtml5page1jpg target=_blank img data-url=documentfriedmann-cosmological-model-with-both-radiation-and-matterhtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: Friedmann Cosmological Model with both Radiation and Matter loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader043fdocumentsinreader043viewer2022020405575068371a28ab0f07af20bdhtml5thumbnails1jpg width=140 height=200 adivp© 1967 Nature Publishing Grouppdivdiv class=trans-pagebutton class=gotoPage data-page=2Page 2button div class=trans-imagea href=https:reader043fdocumentsinreader043viewer2022020405575068371a28ab0f07af20bdhtml5page2jpg target=_blank img data-url=documentfriedmann-cosmological-model-with-both-radiation-and-matterhtmlpage=2 data-page=2 class=trans-thumb lazyload alt=Page 2: Friedmann Cosmological Model with both Radiation and Matter loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader043fdocumentsinreader043viewer2022020405575068371a28ab0f07af20bdhtml5thumbnails2jpg width=140 height=200 adivp© 1967 Nature Publishing Grouppdiv